“Finally, however, when things had been quiet for a time, I got up, and after looking along the aisle, I slipped behind the curtains of lower ten. You understand, Mr. Blakeley, that I thought you were in lower ten, with the notes.”

I nodded curtly.

“I’m not trying to defend myself,” he went on. “I was ready to steal the notes—I had to. But murder!”

He wiped his forehead with his handkerchief.

“Well, I slipped across and behind the curtains. It was very still. The man in ten didn’t move, although my heart was thumping until I thought he would hear it.

“I felt around cautiously. It was perfectly dark, and I came across a bit of chain, about as long as my finger. It seemed a queer thing to find there, and it was sticky, too.”

He shuddered, and I could see Alison’s hands clenching and unclenching with the strain.

“All at once it struck me that the man was strangely silent, and I think I lost my nerve. Anyhow, I drew the curtains open a little, and let the light fall on my hands. They were red, blood-red.”

He leaned one hand on the back of the chair, and was silent for a moment, as though he lived over again the awful events of that more than awful night.

The stout detective had let his cigar go out; he was still drawing at it nervously. Richey had picked up a paper-weight and was tossing it from hand to hand; when it slipped and fell to the floor, a startled shudder passed through the room.