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C++ How to Program:
Late Objects Version, 7/E
7th
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Ob j e cti v e s
In this chapter you’ll learn:
■ Basic hardware and software
concepts.
■ The different types of
programming languages.
■ A typical C++ program
development environment.
■ The history of the Internet
and the World Wide Web,
and the Web 2.0
phenomenon.
■ To test-drive C++
applications in GNU C++ on
Linux and Microsoft’s Visual
C++® on Windows®.
■ Some basic object
technology concepts.
© 2011 Pearson Education, Inc., Upper Saddle River, NJ. All Rights Reserved.

2 Chapter 1 Introduction to Computers, the Internet and the World Wide Web:
Exercises 2
Self-Review Exercises
1.1 Fill in the blanks in each of the following:
a) The company that popularized personal computing was .
ANS: Apple.
b) The computer that made personal computing legitimate in business and industry was
the .
ANS: IBM Personal Computer.
c) Computers process data under the control of sets of instructions called computer
.
ANS: programs.
d) The six key logical units of the computer are the , ,
, , and the .
ANS: input unit, output unit, memoryunit, arithmetic and logic unit, central processing
unit, secondary storage unit.
e) The three types of languages discussed in the chapter are , ,
and .
ANS: machine languages, assembly languages, high-level languages.
f) The programs that translate high-level language programs into machine language are
called .
ANS: compilers.
g) C is widely known as the development language of the operating system.
ANS: UNIX.
h) The language was developed by Wirth for teaching structured program-
ming.
ANS: Pascal.
i) The Department of Defense developed the Ada language with a capability called
, which allows programmers to specify that many activities can proceed in
parallel.
ANS: multitasking.
j) , or labeling content, is another key part of the collaborative theme of Web
2.0.
ANS: Tagging.
k) With Internet applications, the desktop evolves to the .
ANS: webtop.
l) involves reworking code to make it clearer and easier to maintain while pre-
serving its functionality.
ANS: Refactoring.
m) With development, individuals and companies contribute their efforts in de-
veloping, maintaining and evolving software in exchange for the right to use that soft-
ware for their own purposes, typically at no charge.
ANS: open source.
n) are used to match specific character patterns in text. They can be used to val-
idate data to ensure that it is in a particular format, to replace parts of one string with
another, or to split a string.
ANS: Regular expressions.
1.2 Fill in the blanks in each of the following sentences about the C++ environment.
a) C++ programs are normally typed into a computer using a(n) program.

Exercises 3
ANS: editor.

Exercises 4
b) In a C++ system, a(n) programexecutes before the compiler’s translation
phase begins.
ANS: preprocessor.
c) The program combines the output of the compiler with various library
functions to produce an executable program.
ANS: linker.
d) The programtransfers the executable programfrom disk to memory.
ANS: loader.
1.3 Fill in the blanks in each of the following statements (based on Section 1.19):
a) Objects have the property of —although objects may know how to com-
municate with one anotheracross well-defined interfaces, they normally are not allowed
to know how other objects are implemented.
ANS: information hiding.
b) C++ programmers concentrate on creating , which contain data members
and the member functions that manipulate those data members and provide services to
clients.
ANS: classes.
c) Classes can have relationships with other classes. These relationships are called
.
ANS: associations.
d) The process of analyzing and designing a system from an object-oriented point of view
is called .
ANS: object-oriented analysis and design (OOAD).
e) OOD also takes advantage of relationships, where new classes of objects
are derived by absorbing characteristics of existing classes then adding unique charac-
teristics of their own.
ANS: inheritance.
f) is a graphical language that allows people who design software systems to
use an industry-standard notation to represent them.
ANS: The Unified Modeling Language (UML).
g) The size, shape, color and weight of an object are considered of the object.
ANS: attributes.
Exercises
1.4 Categorize each of the following items as either hardware or software:
a) CPU
ANS: hardware.
b) C++ compiler
ANS: software.
c) ALU
ANS: hardware.
d) C++ preprocessor
ANS: software.
e) input unit
ANS: hardware.
f) an editor program

Exercises 5
ANS: software.

Exercises 6
1.5 Why might you want to write a program in a machine-independent language instead of a
machine-dependent language? Why might a machine-dependent language be more appropriate for
writing certain types of programs?
ANS: Machine independent languages are useful for writing programs to be executed on
multiple computer platforms. Machine dependent languages are appropriate for
writing programs to be executed on a single platform.
1.6 Fill in the blanks in each of the following statements:
a) Which logical unit of the computer receives information from outside the computerfor
use by the computer? .
ANS: input unit.
b) The process of instructing the computer to solve specific problems is called
.
ANS: computer programming.
c) What type of computer language uses English-like abbreviations for machine language
instructions? .
ANS: assembly language.
d) Which logical unit of the computer sends information that has already been processed
by the computer to various devices so that the information may be used outside the
computer? .
ANS: output unit.
e) Which logical units of the computer retain information? .
ANS: memory unit and secondary storage unit.
f) Which logical unit of the computer performs calculations? .
ANS: arithmetic and logical unit.
g) Which logical unit of the computer makes logical decisions? .
ANS: arithmetic and logical unit.
h) The level of computer language most convenient to the programmer for writing pro-
grams quickly and easily is .
ANS: high-level language.
i) The only language that a computer directly understands is called that computer's
.
ANS: machine language.
j) Which logical unit of the computer coordinates the activities of all the other logical
units? .
ANS: central processing unit.
1.7 Why is so much attention todayfocused on object-oriented programming?
ANS: Object-oriented programming enables the programmer to build reusable software
components that model items in the real world. Building software quickly, correctly,
and economically has been an elusive goal in the software industry. The modular, ob-
ject-oriented design and implementation approach has been found to increase pro-
ductivity while reducing development time, errors, and cost.
1.8 Distinguish between the terms fatal error and nonfatal error. Why might you prefer to ex-
perience a fatal error rather than a nonfatal error?
ANS: A fatal error causes a program to terminate prematurely. A nonfatal error occurs when
the logic of the program is incorrect, and the program does not work properly. A fatal
error is preferred for debugging purposes. A fatal error immediately lets you know

Exercises 6
there is a problem with the program, whereas a nonfatal error can be subtle and pos-
sibly go undetected.
1.9 Give a brief answer to each of the following questions:

Making a Difference 5
a) Why does this text discuss structured programming in addition to object-oriented pro-
gramming?
ANS: Objects are composed in part of structured program pieces.
b) What kinds of messages do people send to one another?
ANS: People send messages through body language, speech, writings, e-mail, telephones,
etc.
c) Objects send messages to one another across well-defined interfaces. What interfaces
does a car radio (object) present to its user (a person object)?
ANS: Dials and buttons that allow the user to select a station, adjust the volume, adjust bass
and treble, play a CD or tape, etc.
1.10 (The Watch as an Object) You are probably wearing on your wrist one of the world’s most
common types of objects—a watch. Discuss how each of the following terms and concepts applies
to the notion of a watch: object, attributes, behaviors, class, inheritance (consider, for example, an
alarm clock), encapsulation, interface, information hiding, data members and member functions.
ANS: The entire watch is an object that is composed of many other objects (such as the
moving parts, the band, the face, etc.) Watch attributes are time, color, band, style
(digital or analog), etc. The behaviors of the watch include setting the time and get-
ting the time. A watch can be considered a specific type of clock (as can an alarm
clock). With that in mind, it is possible that a class called Clock could exist from
which other classes such as watch and alarm clock could inherit the basic features of
the clock. The watch is an abstraction of the mechanics needed to keep track of the
time. The user of the watch does not need to know the mechanics of the watch in
order to use it; the user only needs to know how to read the face of the watch and
that the watch keeps the proper time. In this sense, the mechanics of the watch are
encapsulated (hidden) inside the watch. The interface to the watch (its face and con-
trols for setting the time) allows the user to set and get the time. The user is not al-
lowed to directly touch the internal mechanics of the watch. All interaction with the
internal mechanics is controlled by the interface to the watch. The data members
stored in the watch are hidden inside the watch and the member functions (looking
at the face to get the time and setting the time) provide the interface to the data.
1.11 Fill in the blanks in each of the following statements (based on Section 1.17):
a) The open source database management system used in LAMP development is
.
ANS: MySQL
b) A key advantage of Software as a Service (SaaS) is .
ANS: When the servers are updated, all clients worldwide see the new capabilities; no local
installation is needed.
c) are proven architectures forconstructing flexible and maintainable object-ori-
ented software.
ANS: Design patterns
d) is the most popular open source server-side “scripting” language for develop-
ing Internet-based applications.
ANS: PHP
Making a Difference

1.12 (Test Drive: Carbon Footprint Calculator) Some scientists believe that carbon emissions,
especially from the burning of fossil fuels, contribute significantly to global warming and that this
can be combatted if individuals take steps to limit their use of carbon-based fuels. Organizations and
individuals are increasingly concerned about their “carbon footprints.” Websites such as TerraPass

www.terrapass.com/carbon-footprint-calculator/
and Carbon Footprint
www.carbonfootprint.com/calculator.aspx
provide carbon footprint calculators. Test drive these calculators to determine your carbon foot-
print. Exercises in later chapters will ask you to program your own carbon footprint calculator. To
prepare for this, research the formulas for calculating carbon footprints.
1.13 (Test Drive: Body Mass Index Calculator) By recent estimates, two-thirds of the people in
the United States are overweight and about half of those are obese. This causes significant increases
in illnesses such as diabetes and heart disease. To determine whether a person is overweight or obese,
you can use a measure called the bodymass index (BMI). The United States Department of Health
and Human Services provides a BMI calculator at www.nhlbisupport.com/bmi/. Use it to calculate
your own BMI. An exercise in Chapter 2 will ask you to program your own BMI calculator. To pre-
pare for this, research the formulas for calculating BMI.
1.14 (Attributes of Hybrid Vehicles) In this chapter you learned the basics of classes. Now you’ll
begin “fleshing out” aspects of a class called “Hybrid Vehicle.” Hybrid vehicles are becoming in-
creasingly popular, because they often get much better mileage than purely gasoline-powered vehi-
cles. Browse the web and study the features of four or five of today’s popular hybrid cars, then list
as many of their hybrid-related attributes as you can. For example, common attributes include city-
miles-per-gallon and highway-miles-per-gallon. Also list the attributes of the batteries (type, weight,
etc.).
ANS:
• Manufacturer
• Type of Hybrid—Battery hybrid (Hybrid Electric Vehicles), Plug-in hybrid, Fuel cell etc.
• Driverfeedback system—so the driver can monitor fuel efficiency based on their driving
• Energy recovery—for example, regenerative breaking
• Carbon footprint—tons of CO2 per year
• Fuel capacity
• City-miles-per-gallon
• Highway-miles-per-gallon
• Two-mode hybrid propulsion system
• Engine size—V6, V8, etc.
• Vehicle type—SUV, crossover, compact, mid-size, etc.
• Seating capacity
• Horse power
• Drive train (front wheel drive, all wheel drive)
• Top speed
• Torque
• Price
1.15 (Gender Neutrality) Manypeople want to eliminate sexism in all forms of communication.
You’ve been asked to create a program that can process a paragraph of text and replace gender-spe-
cific words with gender-neutral ones. Assuming that you’ve been given a list of gender-specific

words and their gender-neutral replacements (e.g., replace “wife” by “spouse,” “man” by “person,”
“daughter” by “child” and so on), explain the procedure you’d use to read through a paragraph of
text and manually perform these replacements. How might your procedure generate a strange term

like “woperchild?” In Chapter 3, you’ll learn that a more formal term for “procedure” is “algo-
rithm,” and that an algorithm specifies the steps to be performed and the order in which to perform
them.
ANS: Search through the entire paragraph for a word such as “wife” and replace every oc-
currence with “spouse.” Repeat this searching process for every gender specific word
in the list. You could accidentally get a word like “woperchild” if you are not careful
about how you perform replacements. For example, the word “man” can be part of
a larger word, like “woman.” So, replacing everyoccurrence of “man” can yield
strange results. Consider the process of replacing “man” with “person” then replacing
“son” with “child.” If you encounter the word “woman,” which contains the word
“man,” you’d replace “man” with “person” resulting in the word “woperson.” In a
subsequent pass you’d encounter “woperson” and replace “son” with “child” result-
ing in the “woperchild.”

Exploring the Variety of Random
Documents with Different Content

Solution Manual for C++ How to Program: Late Objects Version, 7/E 7th Edition Paul Deitel, Harvey Deitel

The Project Gutenberg eBook of The Girl
Philippa

This ebook is for the use of anyone anywhere in the United
States and most other parts of the world at no cost and with
almost no restrictions whatsoever. You may copy it, give it away
or re-use it under the terms of the Project Gutenberg License
included with this ebook or online at www.gutenberg.org. If you
are not located in the United States, you will have to check the
laws of the country where you are located before using this
eBook.
Title: The Girl Philippa
Creator: Robert W. Chambers
Illustrator: Frank Craig
Release date: June 24, 2016 [eBook #52404]
Language: English
Credits: Produced by Al Haines
*** START OF THE PROJECT GUTENBERG EBOOK THE GIRL
PHILIPPA ***

"'Anywhere alone with you in the world
would be a sufficient purpose in life for

me'"
The
GIRL PHILIPPA
BY
ROBERT W. CHAMBERS
ILLUSTRATED BY
FRANK CRAIG
D. APPLETON AND COMPANY
NEW YORK LONDON
1919

COPYRIGHT, 1916, BY
ROBERT W. CHAMBERS
1915, 1916, BY THE INTERNATIONAL MAGAZINE COMPANY
Printed in the United States of America
TO MY SON
BOBBY
BOB AT SIXTEEN
You can tell a better tale than I;
Trap and wing you shoot a better score;
You can cast a surer, lighter fly,
Catch as can, you'd put me on the floor;
Should I hoist a sail beneath the sky
Yours the race, away and back to shore.
You have mastered all my woodland lore,
In the saddle you can give me spades;
You have slain your first and mighty boar
In the classic Croyden Forest shades;
You have heard the Northern rivers roar,

You have seen the Southern Everglades.
You have creeled your Highland yellow trout
Where the Scottish moorlands call us back;
You have left me puzzled and in doubt
Over tropic specimens I lack—
Sphinxes that I know not, huge and stout;
Butterflies, un-named, in blue and black.
Well, we've had a jolly run, my son,
Through a sunny world has lain our trail
Trodden side by side with rod and gun
Under azure skies where white clouds sail;
—Send our journey is not nearly done!
Send the light has not begun to fail.
Envoi
Yet, that day you tread the trail alone,
With no slower comrade to escort
On the path of spring with blossoms sown,
You may deem me not so bad a sort,
Smile and think, as one who would condone,
"He was sure a perfectly good sport."

R. W. C.
Broadalbin; 1916.
DOG-DAYS (1914)
The mad dog of Europe
Yelped in the dog-days' heat;
To his sick legs he staggered up
Swaying on twitching feet;
Snarled when he saw the offered cup,
And started down the street.
All hell has set his brain aflame;
All Europe shrieks with dread;
All mothers call on Mary's name,
Praying by shrine and bed,
"For Jesus' sake!"—Yet all the same
Each sees her son lie dead.
"On Guard!" the Western bugles blow;
"Boom!" from the Western main;
The Brabant flail has struck its blow;
The mad dog howls with pain
But lurches on, uncertain, slow,
Growling amid his slain.

They beat and kick his dusty hide,
He bleeds from every vein;
On his red trail the Cossacks ride
Across the reeking plain
While gun-shots rip his bloody sides
From Courland to Champagne.
Under the weary moons and suns
With phantom eyes aglow,
Dog-trotting still the spectre runs
Yelping at every blow
'Til through its ribs the flashing guns
And stars begin to show.
The moon shines through its riven wrack;
On the bleached skull the suns
Have baked the crusted blood all black,
But still the spectre runs,
Jogging along its hell-ward track
Lined with the tombs of Huns.
Back to the grave from whence it came
To foul the world with red;
Back to its bed of ancient shame
In the Hunnish tomb it fled
Where God's own name is but a name
And souls that lived lie dead.

THE GIRL PHILIPPA
FOREWORD
On the twenty-eighth of June, 1914, the Archduke Francis
Ferdinand, heir to the Austrian throne, was murdered by a Serb in
Serajevo, the capital of Bosnia. The murder was the most
momentous crime ever committed in the world, for it altered the
geography and the political and social history of that planet, and
changed the entire face of the civilized and uncivilized globe.
Generations unborn were to feel the consequences of that murder.
Incidentally, it vitally affected the life and career of the girl
Philippa.
Before the press of the United States received the news, Sir
Cecil Spring-Rice, the British Ambassador, had been notified of the
tragedy, and a few minutes later he was in secret conference with
the President.
The British Ambassador knew what he wanted, which was more
than the administration knew, and at this hasty and secret
conference he bluntly informed the President that, in his opinion,
war before midsummer had now become inevitable; that there was
every probability of England being drawn into a world-wide conflict;
and that, therefore, an immediate decision was necessary
concerning certain pending negotiations.
The truth of this became apparent to the President. The State
Department's ominous information concerning a certain Asiatic

Empire, the amazing knowledge in regard to the secret military and
political activities of Germany in the United States, the crass
stupidity of a Congress which was no better than an uneducated
nation deserved, the intellectual tatterdemalions in whose care
certain vitally important departments had been confided—a
momentary vision of what all this might signify flickered fitfully in the
presidential brain.
And, before Sir Cecil left, it was understood that certain secret
negotiations should be immediately resumed and concluded as soon
as possible—among other matters the question of the Harkness
shell.
About the middle of July the two governments had arrived at an
understanding concerning the Harkness shell. The basis of this
transaction involved the following principles, proposed and mutually
accepted:
1st. The Government of the United States agreed to disclose to
the British Government, and to no other government, the secret of
the Harkness shell, known to ordnance experts as "the candle shell."
2nd. The British Government agreed to disclose to the United
States Government, and to no other government, the secrets of its
new submarine seaplane, known as "the flying fish," the inventor of
which was one Pillsbury, a Yankee, who had offered it in vain to his
own country before selling it to England.
3rd. Both Governments solemnly engaged not to employ either
of these devices against each other in the event of war.
4th. The British Government further pledged itself to restrain
from violence a certain warlike and Asiatic nation until the

Government of the United States could discover some method of
placating that nation.
But other and even more important negotiations, based upon
the principle that the United States should insure its people and its
wealth by maintaining an army and a navy commensurate with its
population, its importance, and its international obligations, fell
through owing to presidential indifference, congressional ignorance,
the historic imbecility of a political party, and the smug vanity of a
vast and half-educated nation, among whose employees were
numbered several of the most perfect demagogues that the purlieus
of politics had ever germinated.
This, then, was the condition of affairs in the United States
when, on the nineteenth of July, the British Ambassador was
informed that through the treachery of certain employees the plans
and formula for the Harkness shell had been abstracted.
But the British Embassy had learned of this catastrophe through
certain occult channels even before it was reported to the United
States Government; and five hours after the information had
reached Sir Cecil Spring-Rice, two young men stepped aboard the
Antwerp liner Zeeduyne a few seconds before the gangway was
pulled up.
With the first turn of the steamer's screws the wheel of fate also
began to revolve, spinning out the web of destiny so swiftly that
already its meshes had fallen over an obscure little town thousands
of miles distant, and its net already held a victim so obscure that few
except the French Government had ever heard of the girl Philippa.
The two young men who had come aboard at the last moment
were nice-looking young men. They carried tennis bats, among other

frivolous hand luggage, and it was rumored very quickly on board
that they were two celebrated New Zealand tennis champions on
their way to the international tournament at Ostend.
It was the Captain who first seemed interested in the rumor and
who appeared to know all about the famous New Zealand players,
Halkett and Gray.
And this was odd, because when Halkett and Gray came aboard
their names did not figure on the passenger list, no stateroom had
been engaged for them, and the Captain of the Zeeduyne had never
before laid eyes on either of them.
But he may have heard of them, for that morning the British
Embassy had called him on the telephone, had talked for twenty
minutes to him, and had arranged for him to hold his steamer if
necessary. But it had been necessary for the Captain to hold the
Zeeduyne for ten minutes only.
The voyage of the Zeeduyne was calm, agreeable, and
superficially uneventful. There was much dancing aboard. Halkett
and Gray danced well. They had come aboard knowing nobody; in a
day or two they seemed to have met everybody. Which urbanity is
not at all characteristic of Englishmen. New Zealanders, it seemed,
were quite different.
The ocean being on its best behavior nearly everybody
appeared triumphantly on deck. There were, however, several
passengers who maintained exclusiveness in their staterooms; and
among these were two German gentlemen who preferred the
stateroom they shared in common. However, they took the air
sometimes, and always rather late at night.

Evidently they were commercial gentlemen, for they sent
several wireless messages to Cologne during the voyage, using a
code of their own which seemed to concern perfumes and cosmetics
and, in particular, a toilet soap known as Calypso soap.
In return they received several wireless messages, also
apparently in some commercial code, and all mentioning perfumes
and Calypso soap.
And a copy of every code message which they dispatched or
received was sent to the Captain of the Zeeduyne, and that affable
and weather-reddened Belgian always handed these copies to the
tennis champions of New Zealand, who spent considerable time
poring over them in the only spot on the steamer which was
absolutely safe from intrusion—the Captain's private quarters.
Then, in their turn, as the steamer drew nearer to the Belgian
coast, they sent a number of wireless messages in private code.
Some of these messages were directed to the British Consul at
Maastricht, some to the British Ambassador at Brussels, some to
private individuals in Antwerp.
But these details did not interfere with the young men's social
activities on board, or with their popularity. Wherever Halkett and
Gray walked, they walked surrounded by maidens and pursued by
approving glances of relatives and parents.
But the two German gentlemen who kept their cabin by day and
prowled sometimes by night were like Mr. Kipling's cat; when they
walked they walked by their wild lone. Only the chaste moon was
supposed to notice them. But always either Halkett or Gray was
watching them, sometimes dressed in the jaunty uniform of a deck
steward, or in the clothing of a common sailor, or in the gorgeous

raiment of a ship's officer. The two Germans never noticed them as
they walked in the dark by their wild lone.
And always while one of the young men watched on deck, the
other ransacked the stateroom and luggage of the gentlemen from
Germany—but ransacked in vain.
As the Zeeduyne steamed into the Scheldt, several thousand
miles away, in the city of Washington, the French Ambassador
telegraphed in cipher to his Government that the secret plans and
formula for the Harkness shell, which had been acquired by England
from the United States Government, had been stolen on the eve of
delivery to the British Ambassador; that French secret agents were
to inspect the arrival of all Dutch, Belgian, and German steamers;
that all agents in the French service resident or stationed near the
north or northeastern frontier of France were to watch the arrival of
all strangers from Holland or Belgium, and, if possible, follow and
observe any individual who might be likely to have been involved in
such a robbery.
Immediately, from the Military Intelligence Department in Paris
orders were telegraphed and letters sent to thousands of individuals
of every description and station in life, to be on the alert.
Among others who received such letters was a denationalized
individual named Wildresse, who kept a cabaret in the little town of
Ausone.
The cabaret was called the Café de Biribi. Wildresse insisted
that the name had been his own choice. But it was at the request of
the Government that his cabaret bore the ominous title as an ever-
present reminder to Wildresse that his personal liberty and the
liberty of his worthless son and heir depended on his good behavior

and his alacrity in furnishing the French Government with whatever
information it demanded.
The letter sent to Monsieur Wildresse read as follows:
MONSIEUR:
Undescribed individuals carrying important document stolen
from the United States Government may appear in your vicinity.
Observe diligently, but with discretion, the arrival of any
strangers at your café. If suspicions warrant, lay a complaint before
local police authorities. Use every caution. The fugitives probably are
German, but may be American. Inform the girl Philippa of what is
required. And remember that Biribi is preferable to Noumea.
When Wildresse received this letter he went into the bedroom of
the girl Philippa, who was standing before her looking glass busily
rouging her cheeks and painting her lips. She wore no corset, her
immature figure requiring none.
"If they come our way, Philippa," growled Wildresse, "play the
baby—do you hear? Eyes wide and artless, virginal candor
alternating with indifference. In other words, be yourself."
"That is not difficult," said the girl Philippa, powdering her nose.
"When I lose my innocence then it will mean real acting."
Wildresse glared at her out of his little black eyes.
"When you lose it, eh?" he repeated. "Well, when you do, I'll
break your neck. Do you understand that?"
The girl continued to powder her nose.
"Who would marry me?" she remarked indifferently. "Also, now
it is too late for me to become a religieuse like—"
"You'll carry on the business!" he growled. "That's what you'll do
—with Jacques, when the Sbirs de Biribi let him loose. As for

marrying, you can think it over when you are thirty. You'll have a dot
by that time, if the damned Government lets me alone. And a
woman with a dot need not worry about marriage."
The girl was now busy with her beautiful chestnut hair;
Wildresse's pock-marked features softened.
"Allons," he said in his harsh voice, "lilies grow prettiest on
dunghills. Also, you are like me—serious, not silly. I have no fears.
Besides, you are where I have my eye on you."
"If I am what I am it is because I prefer it, not on account of
your eye," she said listlessly.
"Is that so!" he roared. "All the same, continue to prefer virtue
and good conduct, and I'll continue to use my two eyes, nom de
Dieu! And if any strangers who look like Germans come into the café
—any strangers at all, no matter what they look like—keep your eyes
on them, do you hear?"
"I hear," said the girl Philippa.
The web of fate had settled over her at last.
About that time the steamer Zeeduyne was docking at Antwerp.
Two hours later two German gentlemen in a hurry registered at
the Hôtel St. Antoine in the Place Verte, and were informed that they
were expected immediately in room 23.
A page conducted them to the corridor and indicated the room;
they thanked him and sent him back for their luggage which he had,
it seemed, neglected to bring from the lobby.
Then both German gentlemen went to the door of room 23,
knocked, and were admitted; and the door was rather violently
closed and locked.

The next instant there came a crash, a heavy fall, dull sounds of
feet scuffling behind the locked door, a series of jarring, creaking
noises, then silence.
A chambermaid came into the corridor to listen, but the silence
was profound, and presently she went away.
When the boy came back with the hand luggage and knocked at
23, Halkett opened the door a little way and, tipping the lad with a
five-franc piece, bade him leave the luggage outside the door for the
present.
Later, Gray cautiously opened the door and drew in the luggage.
Ten minutes later both young men came leisurely out of the
room, locking the door on the outside. They each carried hand
luggage. Halkett lighted a cigarette.
At the desk Gray requested that the gentlemen in No. 23 should
not be disturbed that night, as they were lying down and in need of
repose. Which was true.
Then both young men departed in a cab. At the railroad station,
however, an unusually generous stranger offered Gray a motor cycle
for nothing. So he strapped his bag to it, nodded a smiling adieu to
Halkett, and departed.
Halkett bought a ticket to Maastricht, Holland, which he had no
idea of using, and presently came out of the station and walked
eastward rather rapidly. A man who also had bought a ticket for
Maastricht rose from his seat in the waiting room and walked
stealthily after him, making a signal to another man.
This second man immediately stepped into a station telephone
booth and called up room 23 at the Hôtel St. Antoine, where two
German gentlemen, badly battered, were now conferring with a third

German gentleman who had paid no attention to instructions from
the hotel office but had gone to room 23, knocked until out of
patience, and had then summoned the maître d'hôtel, who unlocked
the door with a master-key.
Which operation revealed two Teutons flat on their backs, very
carefully tied up with rope and artistically gagged.
This unbattered gentleman now conversed over the telephone
with the man at the railroad station.
A few moments later he and the two battered ones left the hotel
hastily in a taxicab, joined the man at the railroad station, and drove
rapidly eastward.
And before forty-eight hours had elapsed, each one of these four
men operating in pairs, had attempted to kill the young man named
Halkett. Twice he got away. The third time two of them succeeded in
locating him in the little town of Diekirch, a town which Halkett was
becoming more and more anxious to leave, as he finally began to
realize what a hornet's nest he and his friend Gray had succeeded in
stirring up.
And all the while the invisible net of destiny in which he now
found himself entangled was every minute enmeshing in its widening
spread new people whose fate was to be linked with his, and who
had never even heard of him. Among them was the girl Philippa.
PROLOGUE

A narrow-gauge railroad track runs through the woods from
Diekirch, connecting the two main lines; and on the deserted
wooden platform beside this track stood Halkett, his suitcase in one
hand, the other hand in his side pocket, awaiting the shuttle train
with an impatience born of deepest anxiety.
The young man's anxiety was presently justified, for, as he
sauntered to and fro, uneasily scanning the track and the unbroken
woods around him, always keeping his right hand in his coat pocket,
two men crept out from behind separate trees in the forest directly
behind the platform, and he turned around only in time to obtain a
foreshortened and disquieting view of the muzzle of a revolver.
"Hands up—" began the man behind the weapon; but as he was
in the very act of saying it, a jet of ammonia entered his mouth
through the second button of Halkett's waistcoat, and he reeled
backward off the platform, his revolver exploding toward the sky,
and fell into the grass, jerking and kicking about like an unhealthy
cat in a spasm.
Already Halkett and the other man had clinched; the former
raining blows on the latter's Teutonic countenance, which proceeding
so dazed, diverted, and bewildered him that he could not seem to
find the revolver bulging in his side pocket.
It was an automatic, and Halkett finally got hold of it and hurled
it into the woods.
Then he continued the terrible beating which he was
administering.
"Get out!" he said in German to the battered man, still battering
him. "Get out, or I'll kill you!"

He hit him another cracking blow, turned and wrested the other
pistol from the writhing man on the grass, whirled around, and went
at the battered one again.
"I've had enough of this!" he breathed, heavily. "I tell you I'll kill
you if you bother me again! I could do it now—but it's too much like
murder if you're not in uniform!"
The man on the grass had managed to evade suffocation; he
got up now and staggered off toward the woods, and Halkett drove
his companion after him at the point of his own revolver.
"Keep clear of me!" he said. "If you do any more telephoning or
telegraphing it will end in murder. I've had just about enough, and if
any more of your friends continue to push this matter after I enter
France, just as surely as I warn you now, I'll defend my own life by
taking theirs. You can telephone that to them if you want to!"
As he stood on the edge of the wooden platform, revolver lifted,
facing the woods where his two assailants had already disappeared,
the toy-like whistle of an approaching train broke the hot, July
stillness.
Before it stopped, he hurled the remaining revolver into the
woods across the track, then, as the train drew up and a guard
descended to open a compartment door for him, he cast a last keen
glance at the forest behind him.
Nothing stirred there, not even a leaf.
But before the train had been under way five minutes a bullet
shattered the glass of the window beside which he had been seated;
and he spent the remainder of the journey flat on his back smoking
cigarettes and wondering whether he was going to win through to
the French frontier, to Paris, to Calais, to London, or whether they'd

get him at last and, what was of infinitely greater importance, a
long, thin envelope which he carried stitched inside his undershirt.
That was really what mattered, not what might become of a
stray Englishman. He knew it; he realized it without any illusion
whatever. It was the contents of this envelope that mattered, not his
life.
Yet, so far, he had managed to avoid taking life in defense of his
envelope. In fact, he traveled unarmed. Now, if matters continued
during his journey through France as they had begun and continued
while he was crossing Holland and the Grand Duchy of Luxembourg,
he would be obliged to take life or lose his own.
And yet, if he did kill somebody, that meant arrest and
investigation by the police of France. And such an investigation
might be fatal to the success of his undertaking—quite as fatal, in
fact, as though he himself were killed.
The main thing was to get that envelope and its contents to
London.
His instructions were not to mail it, but to take it in person, or
to send it, if necessary, by another messenger through other
channels.
One thing became more and more evident to him; the time had
now arrived when certain people unknown to him by sight had
decided to kill him as the only way out of the affair.
Would they actually go so far as to kill him in France, with the
chance of the French police seizing that envelope before they could
seize it and clear out with it to Berlin? Would they hazard the risk of
France obtaining cognizance of a matter which so vitally concerned
Germany, rather than permit that information to reach England?

Halkett lay on his back and smoked and did not know.
But he was slowly coming to the conclusion that one thing was
now imperative: the envelope must not be found upon his person if
he were killed.
But what on earth to do with it until it could be safely
transferred to the proper person he had not the slightest idea.
That evening, as he changed trains at the frontier, in the lamp-
lit dimness of the station platform he was fired at twice, and not hit.
A loud outcry naturally ensued; a stampede of passengers who
tried to escape, a rush of others who desired to see what had
happened—much hubbub and confusion, much shouting in several
languages.
But nobody could be found who had fired two shots from a
revolver, and nobody admitted that they had been shot at.
And so, as nobody had been hit, the gendarmes, guards, and
railway officials were in a quandary.
And the train rolled out of the station with Halkett aboard, a
prey to deepest anxiety concerning his long thin envelope.
CHAPTER I
Somebody at Warner's elbow spoke to him in French. He turned his
head leisurely: a well-dressed young fellow, evidently an
Englishman, was striving to maintain a place beside him in the noisy,
market day crowd.
"Pardon, Monsieur, are you English?"

"American," replied Warner briefly, and without enthusiasm.
"My name is Halkett," said the other, with a quick smile. "I'm
English, and I'm in trouble. Could you spare me a moment?"
To Warner the man did not look the typical British dead-beat,
nor had he any of the earmarks and mannerisms of the Continental
beach-comber. Yet he was, probably, some species or other of that
wearisome and itinerant genus.
"I'm listening," said the young American resignedly. "Continue
your story."
"There's such a row going on here—couldn't we find a quieter
place?"
"I can hear you perfectly well, I tell you!"
Halkett said:
"If I try to talk to you here I'll be overheard, and that won't do.
I'm very sorry to inconvenience you, but really I'm in a fix. What a
noise these people are making! Do you mind coming somewhere
else?"
"Say what you desire to say here," returned Warner bluntly.
"And perhaps it might save time if you begin with the last chapter; I
think I can guess the rest of the story."
The features of the American expressed boredom to the point of
unfriendly indifference. The Englishman looked at him, perplexed for
a moment, then his sun-bronzed face lighted up with another quick
smile.
"You're quite mistaken," he said. "I don't expect the classic
remittance from England, and I don't require the celebrated twenty-
franc loan until it arrives. You take me for that sort, I see, but I'm

not. I don't need money. May I tell you what I do need—rather
desperately?"
"Yes, if you choose."
"I need a friend."
"Money is easier to pick up," remarked Warner drily.
"I know that. May I ask my favor of you all the same?"
"Go ahead."
"Thanks, I will. But can't we get out of this crowd? What is
going on in this town anyway?"
"Market day. It's like this once a month in Ausone. Otherwise
the town is as dead as any other French provincial town."
Shoulder to shoulder they threaded their way through the
crowded market square, amid the clatter of sabots, the lowing of
cattle, the incessant bleating of sheep. Ducks quacked from crates in
wagons, geese craned white necks and hissed above the heads of
the moving throngs; hogs squealed and grunted; fowls hanging by
their legs from the red fists of sturdy peasant women squawked and
flapped.
Cheap-Jack shows of all sorts encumbered the square and
adjacent streets and alleys—gingerbread booths, shooting ranges,
photograph galleries, moving-picture shows, theaters for ten sous.
Through the lowing, bleating, and cockcrowing, the drumming and
squeaking of Punch and Judy, and the brassy dissonance of half a
dozen bands, mournful and incessant strains from several merry-go-
rounds continued audible.
But the steady clatter of sabots on stony pavements, and the
ceaseless undertone of voices, swelling, subsiding, dominated the

uproar, softening the complaint of kine and feathered fowl to a softly
cheerful harmony suggestive of summer breezes and green fields.
On the dusty Boulevard d'Athos—the typical solitary promenade
of such provincial towns—there were, as usual, very few people—the
inevitable nurses here and there, wheeling prams; a discouraged,
red-trousered and sou-less soldier or two sprawling on benches
under the chestnut trees; rarely a passing pedestrian, more often a
prowling dog.
At the head of the Boulevard d'Athos, where the rue d'Auros
crosses, Warner halted under the shade of the chestnuts, for the
July sun was very hot. His unconvinced grey eyes now rested
inquiringly on the young Englishman who had called himself Halkett.
He said:
"What species of trouble are you in?"
Halkett shook his head.
"I can't tell you what the trouble is; I may only ask you to help
me a bit—" The quick smile characteristic of him glimmered in his
eyes again—a winning smile, hinting of latent recklessness. "I have
my nerve with me, you see—as you Americans have it," he added.
"You're thinking something of that sort, I fancy."
Warner smiled too, rather faintly, but remained silent.
"This is what I want you to do," continued Halkett. "I've a long
thin envelope in my pocket. I'd like to have you take it from me and
slip it into your breast pocket and then button your coat. Is that too
much to ask?"
"What!"
"That's all I want you to do. Then if you wouldn't mind giving
me your name and address? And that is really all I ask."

Said the American, amused and surprised:
"That airy request of yours requires a trifle more explanation
than you seem inclined to offer."
"I know it does. I can't offer it. Only—you won't get into trouble
if you keep that envelope buttoned tightly under your coat until I
come for it again."
"But I'm not going to do that!"
"Why?"
"Why the devil should I? I don't propose to wander about
France carrying papers concerning which I know nothing—to oblige
a young man about whom I know even less."
"I quite see that," admitted Halkett seriously. "I shouldn't feel
inclined to do such a thing either."
"Can't you tell me what is the nature of these papers?—Or
something—some explanation——"
"I'm sorry."
"And why do you propose to trust me with them?" continued
Warner, curiously. "How do you know I am honest? How do you
know I won't examine your packet as soon as you clear out?"
Halkett looked up with his quick and winning smile:
"I'll take that risk."
"Why? You don't know me."
"I had a good look at you in the market square before I spoke
to you."
"Oh. You think you are a psychologist?"
"Of sorts. It's a part of my business in life."
"Suppose," said Warner, smiling, "you explain a little more
clearly to me exactly what is your actual business in life."

"Very glad to. I write."
"Books?"
"No; just—stories."
"Fiction?"
"As one might say, facts rather than fiction."
"You are a realist?" suggested Warner with slight irony.
"I try to be. But do you know, there is more romance in realism
than in fairy tales?"
Warner, considerably diverted, nodded:
"I know. You belong to the modern school, I take it."
"Very modern. So modern, in fact, that my work concerns
tomorrow rather than today."
Warner nodded again:
"I see. You are a futurist—opportunist. There are a lot of clever
men working on those lines in England.... Still—" he glanced
amusedly at Halkett "—that scarcely explains your rather unusual
request. Why should I take charge of an envelope for you?"
"My dear fellow, I can't answer that.... Still—I may say this
much; I'm hard put to it—rather bewildered—had a rotten time of it
in the Grand Duchy and in Belgium—so to speak—"
"What do you mean by a rotten time?"
"Rows."
"I don't understand. You'll have to be more explicit."
"Well—it had to do with this envelope I carry. Some chaps of
sorts wanted to get it away from me. Do you see? ... I had a lively
time, and I rather expect to have another before I get home—if I
ever get there."
Warner looked at him out of clear, sophisticated eyes:

"See here, my ingenuous British friend," he said, "play square
with me, if you play at all."
"I shan't play otherwise."
"Very well, then; why are you afraid to carry that envelope?"
"Because," said Halkett, coolly, "if I'm knocked on the head and
that envelope is found in my clothing and is stolen, the loss of my
life would be the lesser loss to my friends."
"Is anybody trying to kill you?"
Halkett shrugged his shoulders; but there seemed to be neither
swagger nor bravado in his careless gesture of assent. He said:
"Listen; here's my case in brief. I saw you in the crowd yonder,
and I made up my mind concerning you. I have to think quickly
sometimes; I took a good look at you and—" He waved one hand.
"You look like a soldier. I don't know whether you are or not. But I
am ready to trust you. That's all."
"Do you mean to say that you are in any real personal danger?"
"Yes. But that doesn't count. I can look out for myself. What
worries me is this envelope. Couldn't you take charge of it? I'd be
very grateful."
"How long do you expect me to carry it about?"
"I don't know. I don't know whether anything is likely to happen
to me today in this town—or tomorrow on the train—or in Paris—I
have no means of knowing. I merely want to get to Paris, if I can,
and send a friend back here for that envelope."
"I thought you were to return for it yourself."
"Maybe. Maybe I'll send you a letter by a friend—just a line for
him to give you, saying it's all right."

"Mr. Halkett, you have rather a disconcerting way of expressing
unlimited confidence in me—"
"Yes, I trust you."
"But why?"
"You look right."
"That's no reason!"
"My dear chap, I'm in a corner, and instinct rules, not reason!
You see, I—I'm rather afraid they may get me before I can clear
out."
"Who'll get you?" demanded Warner impatiently.
"That's the worst of it; I don't know these fellows by sight. The
same chaps never try it on twice."
Warner said quietly:
"What is this very dramatic mess you're in? Can't you give me a
hint?"
"I'm sorry."
"Shall I give you a hint?"
"If you like."
"Are the police after you?"
"No."
"You're sure of that?"
"Quite sure. I don't blame you for asking. It looks that way. But
it isn't."
"But you are being followed across Europe by people who want
this envelope of yours?"
"Oh, yes."
"You expect personal violence from them?"

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