"That suggested another idea, to have Laidlaw there too. I know I was a damn fool, but there it was. Laidlaw seeing Faith there, and Faith seeing him. Of course, my aunt could cross Faith off and tell Mrs Irwin-" He stopped. In a second he went on, "I mean you never knew what Faith would do, she might refuse to go, but Laidlaw wouldn’t know she had been asked, so what the hell. So I suggested that to my aunt, to invite Laidlaw, and she did."
"Did Miss Usher know that Albert Grantham had fathered her?"
"My God, no. She thought her father had been a man named Usher who had died before she was born."
"Did she know you were the source of her mother’s income?"
"No. I think- No, I don’t think, I know. She suspected that her mother’s income came from friends. From men she knew. That was why she left. About my picking Faith to be invited to that party and suggesting Laidlaw, after I had done that I got cold feet. I realized something might happen. At least Faith might walk out when she saw him, and it might be something worse, and I didn’t want to be there, so I decided to get someone to go in my place. The first four or five I tried couldn’t make it, and I thought of Archie Goodwin."
Wolfe leaned back and closed his eyes, and his lips started to work. They pushed out and went back in, out and in, out and in… Sooner or later he always does that, and I really should have a sign made, GENIUS AT WORK, and put it on his desk when he starts it. Usually I have some sort of idea as to what genius is working on, but that time not a glimmer. He had cleared away some underbrush, for instance who had sicked the cops on Laidlaw and how Faith and Laidlaw had both got invited to the party, but he had got only one thing to chew on, that he had at last found somebody who had had a healthy motive to kill Faith Usher, and Byne, as he liked to point out himself, hadn’t even been at the party. Of course, that could have been what genius was at, doping out how Byne could have poisoned the champagne by remote control, but I doubted it.
Wolfe opened his eyes and aimed them at Dinky. "I’m not going to wait until Monday," he said. "If I haven’t enough now, I never will have. One thing you have told me, or at least implied, will have to be my peg. If I asked you about it now, you would only wriggle out with lies, so I won’t bother. The time has come to attack the central question: if someone had decided to kill Faith Usher, how did he manage it?" He turned. "Archie, get Mr Cramer."