"What did you do?" I asked, though it was like conducting a postmortem upon a murderer's corpse.

"I went to New York to get my share. I wasn't going to be ousted, I, who had been one of the discoverers. I don't know how much Carson paid Louis, but I meant to demand half. I thought he had the money in his pocket.

"I followed him all that afternoon after he had left Carson's office. I watched him in the street. At night he went to a room somewhere—at the top of a tall building. I followed him. When I got in I found a woman there. Louis was talking to her and threatening her. He said she was his wife. How could she be his wife when he had married Jacqueline Duchaine?

"I didn't care—it was no business of mine. I couldn't see them, because there was a curtain in the way. There was no light in the bedroom. There was a light in the room in which I was. I put it out, so that neither of them should see my face. She might have betrayed me, you know, Simon.

"He spun round when the light went out, and pushed the curtain aside. I was waiting for that. I had calculated my blow. I stabbed him. It was a good blow, though it was delivered in the dark. He only cried out once. But the woman screamed, and a dog flew at me, and I couldn't find his money. So I ran away.

"And then there were only three of us who knew the secret. Then Simon died and there were only two, and now there are only Hewlett and I, and he is dead, poor fool, and I have my gold here. For God's sake give me a knife, Simon!"

His fingers tore at my sleeve in his last agony, and I was tempted sorely. And it was his own knife that I had. The irony of it!

He muttered once or twice and cried out in fear of the man whom he had slain. I heard him gasp a little later. Then the hand fell from my sleeve. And after that there was no further sound.

"Paul!"

It was the merest whisper from the wall. I thought it was a trick of my own mind. I dared not hope.