I nodded. "His funeral was Tuesday and he was buried at Agawalk Cemetery. Mr. Nero Wolfe wants to bet you-he would rather bet Mr. Anderson but he says you'll do-that if you'll have the body lifted and an autopsy made you'll find proof of poison. He will bet ten thousand dollars and will deposit a certified check for that amount with any responsible person you name."
I just grinned as Derwin stared at me. He stared a long time, then he said, "Mr. Nero Wolfe is crazy."
"Oh no," I said. "Whatever you bet on, don't bet on that. I haven't finished yet with Nero Wolfe's bet. The rest of it is that somewhere in Barstow's belly, probably just below the stomach, somewhere between one and three inches in from the skin, will be found a short, sharp, thin needle, probably of steel but possibly of very hard wood. It will be pointing upward, approximately at an angle of forty-five degrees if not deflected by a bone."
Derwin kept staring at me. When I stopped he tried his trick laugh again, but it didn't work so well. "This is about as big a bunch of nonsense as I've ever heard," he said. "I suppose there is a point to it somewhere, if you're not crazy too."
"There's a point all right." I reached in my pocket for the check Wolfe had given me. "There are very few people in the world who would risk ten thousand on a bunch of nonsense, and you can take it from me that Nero Wolfe isn't one of them. Peter Oliver Barstow was murdered, and he's got that needle in him. I say it, Nero Wolfe says it, and this ten grand says it. That's a lot of testimony, Mr. Derwin."
The lawyer was beginning to look not nearly as happy and pleased as he had when I went in. He got up from his chair and then sat down again. I waited. He said, "It's preposterous. Absolutely preposterous."
"Wolfe isn't betting on that." I grinned. "He's just betting that it's true."
"But it can't be. It's merely preposterous and-and monstrous. Whatever the stunt may be you're trying to pull, you've hit the wrong man; I happen to be acquainted with the Barstow family and therefore know the facts. I won't recite them to you; such idiotic nonsense. Do you know who signed the death certificate? I don't suppose-"
"Sure," I put in, "Dr. Nathaniel Bradford. Coronary thrombosis. But if all the doctors in the world were as good as him, and if they all said coronary thrombosis, Nero Wolfe's money is still right here ready to talk."