The man wriggled himself free from Billy Kane’s grip.

“It’s not for me to say sir,” he answered uneasily. “I—I can only tell you what they say.”

“Tell me, then!” Billy Kane’s voice, low as it was, was deadly in its even, monotonous tone.

“Yes, sir,” said Jackson. “Keep your ear close to my lips, sir If anyone hears us, it’s all up. They found him, Mr. Ellsworth, sir, lying there dead in the library with his head split open, about half an hour after you went out, sir. You were with him in the library after dinner alone, sir; and no one was with him after that, and—don’t grip me again like that, sir, or I can’t go on. You don’t know your own strength, sir, Mr. Kane.”

“Go on, Jackson!” breathed Billy Kane. “I’m sorry! Go on!”

“Yes, sir; thank you, sir. It was Peters, the butler, sir, who found the body, and he sent for the police. Mrs. Ellsworth doesn’t know anything about it yet, sir. They’re afraid to tell her, she’s so delicate and sick, sir. It was about half an hour after you went out, sir, as I said, that Peters went to see Mr. Ellsworth about something, and found him there like you just saw, sir. And then the police came, sir, and they figured that you did it before you went out, and that you went out to dispose of the money and jewels, sir, in some safe place, and maybe also as a sort of alibi like, so that they’d think it was done while you were away, sir, and that when you returned, if you did return, sir, you would profess horror and surprise, sir.”

“Are you mad, Jackson!” Billy Kane said again.

“No, sir—you’ll see, sir—they’ve got you dead to rights. Both the vault and safe doors were open, and the money and rubies gone, and on the floor of the vault, way in by the wall under the lower shelf, like it had fluttered in there without you noticing it, sir, was a card with the combinations on it, and it was in your handwriting, Mr. Kane, sir. And in Mr. Ellsworth’s hand, clutched there tight, sir, was a little piece of black silk cord, and on the floor, under the table, sir, where it must have rolled without you knowing it, sir, was a black button.”

“I don’t understand,” said Billy Kane, a little numbly now. There had been something grotesquely absurd, something in the nature of a ghastly, hideous and ill-timed joke, something that was literally the phantasm of a diseased brain in the murmur of this man’s voice whispering out of the darkness; but there was creeping upon him now a prescience as of some deadly and remorseless thing that was closing down, around and upon him with inexorable and crushing force. “I don’t understand,” he said again.

“Yes, sir.” Jackson’s low, guarded voice went on. “It’s not for me to say, sir. You’ll remember, Mr. Kane, that you were wearing a dinner jacket, and that before going out you went up to your room and changed. I suppose it was excitement, sir, and you never noticed it, and it’s not to be wondered at under the circumstances, sir. The button had been pulled off the jacket, sir, and had taken the black silk loop with it. And the button had rolled under the library-table, Mr. Kane, sir, and the loop was clutched in Mr. Ellsworth’s hand.”