CHAPTER XII

The Code-book

Mr. William Porter--otherwise Ludwig Schoeffer, had taken readily to

his new surroundings on board the S.S. _West Barbican_. He made it a

habit to do so, wherever he was: at the Wilhelmstrasse, Berlin, or in

Sing Sing Prison, New York. He made a speciality of studying men and

things, and, in order to do so, he naturally came to close quarters

with the objects of his professional attention.

He had failed to prevent the shipment of the Brocklington Company's

consignment of steelwork for the Kilba Protectorate. There remained a

chance of achieving his object while the steelwork was on the high

seas; and to that end he had booked a passage in the _West Barbican_.

His primary idea was to sink the ship without loss of life. It might

have been a new-born hesitation to take human life that actuated his

plans. During the war he had not been so scrupulous. Now, perchance,

he looked upon murder and manslaughter in a different light. Or

perhaps he was developing nerves and was afraid of falling into the

clutches of the law, for he knew full well that, if he bungled, his

employers in Germany would utterly repudiate him.

It might have been possible for him to place a delayed-action infernal

machine in the hold of the _West Barbican_ when she was loading up at

Brocklington. But he had not an intimate knowledge of the construction

of the ship, and he feared to take drastic steps without being certain

of his surroundings. Nor did he wish to immolate dozens of passengers.

The majority of the latter would be leaving the ship either at Cape

Town or Durban, so their departure would ease the situation as far as

the remnants of his conscience were concerned.

He decided, therefore, to go as far as South Africa as a passenger on

the _West Barbican_. During the voyage he could obtain a good

knowledge of the ship's routine, and the accessibility or otherwise of

the holds and bunkers. Then, before leaving the ship at Durban, he

could "plant" his high-explosive bomb and send the _West Barbican_ to

her doom.

It was an easy matter to convey the explosives on board. The customs

officers at British ports are vigilant enough in connection with

homeward-bound passengers' baggage, but not so in the case of departing

ships. No one paid any attention to the dark-red, cloth-bound book

that Mr. Porter carried under his arm. It never occurred to Ludwig

Schoeffer that it was hardly fair to a book to be carried so openly on

a damp, foggy day.

Outwardly it was a book, but between the covers there were no leaves

except dummy edges. In the recess thus formed was four pounds of very

high explosive, sufficient to blow a hole completely through the steel

plating of a merchant-ship's hold. The explosive without a primer was

comparatively innocuous. It could be subjected to a severe blow

without detonating; fire had no effect upon it, except that it would

smoulder without bursting into flame. But when mixed with a solution

of potash the latent power was instantly and terrifically released.

Until the bomb was prepared for action Schoeffer kept the glass tube

containing the potash separate from the main explosive. If necessary

he could easily explain the potash by saying it was medicine.

The detonation of the infernal machine was actuated by a fairly simple

device. It was only necessary to smash the glass tube of potash; but

the point was: how could Schoeffer break the glass when he was away

from the ship?

If anyone had had an opportunity of inspecting Mr. Porter's watch he

would certainly have been interested; for, in addition to the hours,

minutes, and seconds hands, the dial sported a hand that indicated the

days up to seven. But in place of numbers on the day circle there were

seven black dots. Each of these dots proved to be a small insulated

metal peg, capable of being raised until it projected a fraction of an

inch from the dial, yet sufficiently to hold up the hand.

To complete the outfit there was a small eight-volt battery, which, on

a circuit being formed, would detonate a minute charge of explosive,

enough to smash the glass tube, liberate the potash, and cause the

desired catastrophe. By means of the watch Schoeffer could delay the

explosion from one to seven days after he had set the bomb in position.

Mr. Porter made rapid strides in forming acquaintances on board. He

was affable without being obtrusive; communicative up to a certain

point, without volunteering information; a good conversationalist

without boring his listeners. He took a keen interest in the officers,

the stewards, and even the lascars, but, in the course of conversation

with them, he rarely if ever asked questions concerning their

professional duties.

One person in particular he cultivated. That was Wilkins, the

Captain's steward. Wilkins was a professional postage-stamp agent; he

bought large quantities of stamps in foreign parts on behalf of a

London firm. Mr. Porter was a keen amateur collector, and so a bond of

interest was formed.

Since the facilities for encouraging conversation between passengers

and stewards are limited, Schoeffer found a convenient opportunity to

confer with Wilkins on the subject of postage stamps. The opportunity

occurred just before "lights out", the venue being the pantry.

Schoeffer found that the subject of stamps afforded him a splendid

chance of gaining information concerning the Old Man. He knew that the

skipper kept the code-books in his cabin. Two of them--the _ABC_ and

the _Telegraph Code_--were practically public property, but the third

was the private code of the Blue Crescent Line, by which the owners

telegraphed orders to their various ships.

The German agent made no attempt to suborn the steward to "borrow" the

code-book. He preferred to work single-handed. It was infinitely

safer. But he soon discovered that Captain Bullock was a light sleeper

and that he was practically an abstainer from strong drink, except for

his regular "night-cap".

One night the chance occurred. Wilkins had mixed the Old Man's grog.

His attention diverted for a minute, he was unaware that Mr. Porter had

dropped into the glass a cube resembling sugar but containing a

powerful narcotic quite devoid of taste.

"Well, sir," remarked Wilkins, "I must push off and take this to the

skipper."

With this gentle intimation the steward speeded his guest. He had

reasons for so doing. He had no desire to let even an affable

gentleman like Mr. Porter know that he was in the habit of helping

himself to the Old Man's whisky.

A few minutes later Wilkins poured out another stiff glass of grog and

carried it to the skipper, leaving for his own consumption the glass

that Schoeffer had doped.

Ten minutes later the steward returned to the pantry, drunk the

doctored whisky, and spent the rest of the night in a state of

insensibility, in which condition he was found and befriended by the

Chief Steward.

Returning to his cabin--a single-berth one on the port side--Schoeffer

closed the deadlight and drew a curtain over the jalousied door. At

twelve the electric lights in the passengers' cabins were switched off,

but that hardly troubled "Mr. Porter". An electric torch gave him all

the light he required.

Two bells sounded. Cautiously Schoeffer switched off the torch,

undressed, and put on dark-coloured pyjamas and felt bedroom slippers.

Then, after listening to hear that no one was about, he stole silently

from his cabin.

He guessed that the officer of the watch would be drinking cocoa in the

chartroom, and that the bridge would be deserted save for the native

quartermaster at the wheel. If he were intercepted, Schoeffer would

pose as a somnambulist and suffer himself to be led back to his cabin.

But no one was about. Boldly yet stealthily he gained the bridge and

entered the skipper's cabin, confident that the Old Man was in a

drugged sleep. He would have had a nasty shock had he known that

Captain Bullock was merely drowsy and was aware of his presence.

With the private code-book in his possession Schoeffer retraced his way

to his cabin. Luck was with him. Unseen and unheard he entered his

stateroom and closed the door. For the next two hours he was hard at

work carefully copying out cryptic letters, that in due course would

enable him to carry out his nefarious plans to perfection. He also

carefully committed to memory the instructions printed in the front of

the book relating to the procedure to be followed in sending and

receiving instructions by code.

Again he sallied forth to the Captain's cabin and replaced the book.

What rather puzzled him was the fact that the Old Man was sleeping

naturally. His deep, regular breathing did not conform to the

suggestion that he was under the influence of a powerful drug.

It was a disquieting discovery. He could not account for it. Perhaps,

he thought, Captain Bullock had something up his sleeve. Even the

satisfaction of having secured and made full use of the secret

code-book had much of its greatness shorn by the haunting dread of the

burly captain of the S.S. _West Barbican_.

The Wireless Officer · 第 12 / 38 章