"No—no time." Stanistreet opened a drawer of the desk—"Here!"—and closed it as Blensop hastily swept the jewellery into it. "Safe enough there—as long as he doesn't know, at all events. But don't forget to put them away after he goes."

"No, sir."

Again the door opened. Walker announced: "Mr. Duchemin." Stanistreet rose in his place. A man strode in with the assurance of one who has discounted a cordial welcome.

Through the gap which he had quietly created between the portière and the side of the window, Lanyard stared hungrily, and for the second time that night damned heartily the inadequate light in the library.

The impostor's face, barely distinguishable in the up-thrown penumbra of the lampshade, wore a beard—a rather thick, dark beard of negligent abundance, after a mode popular among Frenchmen—above which his features were an indefinite blur.

Lanyard endeavoured with ill success to identify the fellow by his carriage; there was a perceptible suggestion of a military strut, but that is something hardly to be termed distinctive in these days. Otherwise, he was tall, quite as tall as Lanyard, and had much the same character of body, slender and lithe.

But he was "Karl" beyond question, confederate and murderer of Baron von Harden, the man who had thrown the light bomb to signal the U-boat, the brute with whom Lanyard had struggled on the boat deck of the Assyrian—though the latter, in the confusion of that struggle, had thought the German's beard a masking handkerchief of black silk.

Now by that same token he was no member of that smoking-room coterie upon which Lanyard's suspicions had centered.

On the other hand, any number of passengers had worn beards, not a few of much the same mode as that sported by this nonchalant fraud.

Vainly Lanyard cudgelled his wits to aid a laggard memory, haunted by a feeling that he ought to know this man instantly, even in so poor a light. Something in his habit, something in that insouciance which so narrowly escaped insolence, was at once strongly reminiscent and provokingly elusive….