"Well." Wolfe cocked his head. "That is a ticklish point. My sole concern in this is the murder of Faith Usher, and I have no desire to make unnecessary trouble for people not implicated in it. For example, I know where you can find evidence that the death of Faith Usher meant substantial financial profit for a certain man, but since he wasn’t there and couldn’t have killed her, I’ll tell you about it only if it becomes requisite. To answer your question: I have statements of two people, Mrs Elaine Usher and Mr Austin Byne." His eyes moved. "And, Mr Byne, you have trimmed long enough. Did your aunt know that Faith Usher was the daughter of Albert Grantham?"
Dinky’s jaw worked. He looked left, at Mrs Usher, but not right, at his aunt. Wolfe had made it plain: if he came through, Wolfe would not tell Cramer about the agreement and where it was. Probably what decided him was the fact that Mrs Robilotti had already given it away by slapping Mrs Usher.
"Yes," he said. "I told her."
"When?"
"A couple of months ago."
"Why?"
"Because-something she said. She had said it before, that I was a parasite because I was living on money my uncle had given me before he died. When she said it again that day I lost my temper and told her that my uncle had given me the money so I could provide for his illegitimate daughter. She wouldn’t believe me, and I told her the name of the daughter and her mother. Afterwards I was sorry I had told her, and I told her so-"
A noise, an explosive noise, came from his aunt. "You liar," she said, a glint of hate in the pale grey eyes. "You sit there and lie. You told me so you could blackmail me, to get more millions out of me. The millions Albert had given you weren’t enough. You weren’t satisfied-"
"Stop it!" Wolfe’s voice was a whip. He was scowling at her. "You are in mortal peril, madam. I have put you there, so I have a responsibility, and I advise you to hold your tongue. Mr Cramer. Do you want more from Mr Byne, or more from me?"
"You." Cramer was so shocked he was hoarse. "You say that Mrs Robilotti deliberately let Faith Usher come to that party so she could kill her. Is that right?"
"Yes."
"And that her motive was that she knew that Faith Usher was the illegitimate child of Albert Grantham?"