He felt for it. It was gone. Even before his fingers had time to touch the sealskin pouch his instinct told him that it was not there. He turned as white as a man at the point of death, and sank into a chair with a deep groan. His chin dropped on his breast, and two great tears rolled slowly from his eyes and fell to the ground.

A disarrangement of the carpet attracted his eye. It had been turned back for the space of a yard or so, leaving the boards bare. On this bare patch was a tiny cone of white ash.

Ducie's suspicions were aroused in a moment. He stooped and took up a pinch of the ash and smelt at it. It emitted a faint odour, similar to that more powerful odour which had overcome him so strangely in the course of the night.

No recollection of his dream, or of that still more singular vision in which Cleon had acted so prominent a part, had touched his memory since waking. But now, by one of those peculiar mental processes with which all of us are familiar, although we may not be able to explain them, the faint perfume that still pervaded the ash he had taken up between his fingers brought vividly back to his recollection every scene, real and imaginary, in which he had acted a part during his sleeping hours.

The five of clubs and his game of cards with the Memphian statue--he remembered that, and he at once put it aside as nothing more than a dream of a somewhat bizarre character. After that, the strange odour that filled his room, precisely similar to that of the ash in his hand; the sudden apparition of Cleon; the dagger, and the rape of the Diamond: were those things dreams or realities? Dreams, nothing but idle dreams, he should have replied at any other time, but with the sense of his irreparable loss eating into his very soul, he could only acknowledge that for him they made up a bitter reality.

Cleon had been there in person, and had succeeded in stealing the Diamond.

With a terrible string of imprecations on the mulatto's head, Ducie flung open the casement, and let in the sweet morning air. There were two more tiny cones of white ash, similar to the first, on other parts of the floor.

"That fiend of a mulatto has obtained access to my room," muttered Ducie to himself. "The powerful odour which had such a strange effect upon me must have been emitted by the pastilles, the ashes of which are before me. The pastilles were doubtless compounded of some strong narcotics, probably of certain Oriental drugs with the qualities of which Cleon was acquainted. I have been the victim of an infernal plot."

That Cleon had been there could not be doubted; but where was he now? Ducie halted in his troubled walk as this question put itself to him, and turned to examine the door. It was unbolted, but otherwise shut. His custom was to bolt it every night before getting into bed; but did he really bolt it last night? He could not recollect. Considering the state in which he was when he came to bed, was not the probability in favour of his having left it unfastened? In any case, that was now a point of little consequence. The Diamond was gone, and Cleon was doubtless gone with it. The mulatto was not such a fool as to remain in the neighbourhood of a man whom he had mortally offended, especially when his interests imperatively demanded that he should get safely away. Between him and Ducie the case was now one of life and death.

A fresh thought struck him and he turned to look at his watch. It was a quarter past six. The Southampton boat did not sail till a quarter to seven. Was it not most probable that Cleon, calculating on his, Ducie's, not awaking till after that time, would attempt to leave the island by the early boat? It was most probable that he would do so. "But if he leaves Jersey, I leave it with him," murmured the captain. "I shall certainly kill him the first opportunity I have of doing so."