"It was really done as an experiment," he said. "I am not a card-sharper by profession, as some of you already know. But in the course of certain investigations not connected with the matter I now have in hand, I picked this thing up, and, being something of a specialist in certain forms of cheating, I made up my mind to try my hand at this and prove for myself its extreme simplicity. You see how easy it is to swindle, gentlemen, and the danger to which you expose yourselves. There is no necessity for me to explain the trick further. The instrument speaks for itself. It is merely a matter of dexterity, and keeping it out of sight."

He held it up a second time before his amazed audience, twisted it this way and that, with the air of a conjurer displaying his smartest trick, attached it finally to the lapel of his coat, and rose.

"As a practical demonstration it seems to have acted very well," he remarked. "And no harm done. If you are all satisfied, so am I."

He collected the notes at his elbow with a single careless sweep of the hand, and tossed them into the middle of the table; then, with a brief, collective bow, he turned to go. But Rudd, the first to recover from his amazement, sprang impetuously to his feet. "One moment, sir!" he said.

West stopped at once, a cold glint of humour in his eyes. Without a sign of perturbation he faced round, meeting the American's hostile scrutiny calmly, judicially.

"I wish to say," said Rudd, "on behalf of myself, and--I think I may take it--on behalf of these other gentlemen also, that your action was a most dastardly piece of impertinence, to give it its tamest name.

Naturally, we don't expect Court manners from one of your profession, but we do look for ordinary common honesty. But it seems that we look in vain. You have behaved like a mighty fine skunk, sir. And if you don't see that there's any crying need for a very humble apology, you've got about the thickest hide that ever frayed a horsewhip."

Every one was standing by the time this elaborate threat was uttered, and it was quite obvious that Rudd voiced the general opinion. The only one whose face expressed no indignation was Archie Bathurst. He was leaning against the wall, mopping his forehead with a shaking hand.

No one looked at him. All attention was centred upon West, who met it with a calm serenity suggestive of contempt. He showed himself in no hurry to respond to Rudd's indictment, and when he did it was not exclusively to Rudd that he spoke.

"I am sorry," he coolly said, "that you consider yourselves aggrieved by my experiment. I do not myself see in what way I have injured you.

However, perhaps you are the best judges of that. If you consider an apology due to you, I am quite ready to apologise."

His glance rested for a second upon Archie, then slowly swept the entire a.s.sembly. There was scant humility about him, apologise though he might.

Rudd returned his look with open disgust. But it was Norton who replied to West's calm defence of himself.

"It is Bathurst who is the greatest loser," he said, with a glance at that young man, who was beginning to recover from his agitation. "It was a tom-fool trick to play, but it's done. You won't get another opportunity for your experiments on board this boat. So--if Bathurst is satisfied--I should say the sooner you apologise and clear out the better."

"We will confiscate this, anyway," declared Rudd, plucking the mirror from West's coat.

He flung it down, and ground his heel upon it with venomous intention.

West merely shrugged his shoulders.

"I apologise," he said briefly, "singly and collectively, to all concerned in my experiment, especially"--he made a slight pause--"to Mr.

Bathurst, whose run of luck I deeply regret to have curtailed. If Mr.

Bathurst is satisfied, I will now withdraw."

He paused again, as if to give Bathurst an opportunity to express an opinion. But Archie said nothing whatever. He was staring down upon the table, and did not so much as raise his eyes.

West shrugged his shoulders again, ever so slightly, and swung slowly upon his heel. In a dead silence he walked away down the saloon. No one spoke till he had gone.

A black, moaning night had succeeded the grey, gusty day. The darkness came down upon the sea like a pall, covering the long, heaving swell from sight--a darkness that wrapped close, such a darkness as could be felt--through which the spray drove blindly.

There was small attraction for pa.s.sengers on deck, and West grimaced to himself as he emerged from the heated cabins. Yet it was not altogether distasteful to him. He was a man to whom a calm atmosphere meant intolerable stagnation. He was essentially born to fight his way in the world.

For a while he paced alone, to and fro, along the deserted deck, his hands behind him, the inevitable cigarette between his lips. But presently he paused and stood still close to the companion by which he had ascended. It was sheltered here, and he leaned against the woodwork by which Cynthia Mortimer had supported herself that morning, and smoked serenely and meditatively.

Minutes pa.s.sed. There came the sound of hurrying feet upon the stairs behind him, and he moved a little to one side, glancing downwards.

The light at the head of the companion revealed a man ascending, bareheaded, and in evening dress. His face, upturned, gleamed deathly white. It was the face of Archie Bathurst.

West suddenly squared his shoulders and blocked the opening.

"Go and get an overcoat, you young fool!" he said.

Archie gave a great start, stood a second, then, without a word, turned back and disappeared.

West left his sheltered corner and paced forward across the deck. He came to a stand by the rail, gazing outwards into the restless darkness.

There seemed to be the hint of a smile in his intent eyes.

A few more minutes drifted away. Then there fell a step behind him; a hand touched his arm.

"Can I speak to you?" Archie asked.

Slowly West turned.

"If you have anything of importance to say," he said.

Archie faced him with a desperate resolution.

"I want to ask you--I want to know--what in thunder you did it for!"

"Eh?" said West. "Did what?"

He almost drawled the words, as if to give the boy time to control his agitation.

Archie stared at him incredulously.

"You must know what I mean."

"Haven't an idea."

There was just a tinge of contempt this time in the words. What an unconscionable bungler the fellow was!

"But you must!" persisted Archie, blundering wildly. "I suppose you knew what you were doing just now when--when----"

"I generally know what I am doing," observed West.

"Then why----"

Archie stumbled again, and fell silent, as if he had hurt himself.

"I don't always care to discuss my motives," said West very decidedly.

"But surely--" Archie suddenly pulled up, realising that by this spasmodic method he was making no headway. "Look here, sir," he said, more quietly, "you've done a big thing for me to-night--a dashed fine thing! Heaven only knows what you did it for, but----"

"I have done nothing whatever for you," said West shortly. "You make a mistake."

"But you'll admit----"