"Certainly. We have at last goaded someone to action. I am gratified. If there was any small shadow of doubt that Miss Usher was murdered, this removes it. They have all claimed to have had no knowledge of Miss Usher prior to that party; one of them lied, he has been driven to move. True, it is still possible that you yourself are the culprit, but I now think it extremely improbable. I prefer to take it that the murderer has felt compelled to create a diversion, and that is most gratifying. Now he is doomed."
"But good God! They know about-about me!"
"They know no more than they knew before. They get a dozen accusatory unsigned letters every day, and have learned that the charges in most of them are groundless. As for your refusal to answer questions, a man of your standing might be expected to take that position until he got legal advice. It’s a neat situation, very neat. They will of course make every effort to find confirmation of that note, but it is a reasonable assumption that no one can supply it except the person who sent the note, and if he dares to do so we’ll have him. We’ll challenge him, but we’ll have him." He glanced up at the wall clock. "However, we shall not merely twiddle our thumbs and wait for that. I have thirty minutes. You told me Wednesday morning that no one on earth knew of your dalliance with Miss Usher; now we know you were wrong. We must review every moment you spent in her company when you might have been seen or heard. When I leave, at four o’clock, Mr Goodwin will continue with you. Start with the day she first attracted your notice, when she waited on you at Cordoni’s. Was anyone you knew present?"
When Wolfe undertakes that sort of thing, getting someone to recall every detail of a past experience, he is worse than a housewife bent on finding a speck of dust that the maid overlooked. Once I sat for eight straight hours, from nine in the evening until daylight came, while he took a chauffeur over every second of a drive, made six months before, to New Haven and back. This time he wasn’t quite that fussy, but he did no skipping. When four o’clock came, time for him to go up and play with the orchids, he had covered the episode at Cordoni’s, two dinners, one at the Woodbine in Westchester and one at Henke’s on Long Island, and a lunch at Gaydo’s on Sixty-ninth Street.