"And left it lying on your desk, perhaps, or in a basket?"
"No, I didn't. It was to go by messenger, and I had sent for one. I went immediately to the anteroom and put it on Blanche's desk and asked her to give it to the messenger when he came."
"Who is Blanche?"
"The receptionist. Miss Duke."
Wolfe's eyes moved. "Which of you is Miss Duke?"
Blanche raised a hand, high. "I am. And I get the idea, I'm quick. You're going to ask me if I put the stuff in another envelope, and I'm going to say I didn't. And I don't know who did. But Mr. O'Malley came and said something about something left out and took the envelope away with him."
"Mr. O'Malley?"
"Yes."
"Did he bring it back?"
"Yes."
"How soon? How long was he gone with it?"
"I don't know, I guess three or four minutes. Anyway he brought it back, and when the messenger came I gave it to him."
"Did you notice whether it was the same envelope?"
"My God, no!"
"This is important, Miss Duke. Will you testify that Mr. O'Malley took the envelope from your desk, left the room with it, and shortly returned with it or with a similar one?"
"What do you mean, will I? I am!"
Wolfe's eyes left her to move right and back again, still above the heads of the lawyers. "We seem to be solving our problem," he remarked. "One more detail would help. Clearly we must assume that Mr. O'Malley addressed another envelope and transferred the material to it. If so, it seems likely that one of you ladies saw him do it, though I don't know how the typewriters are placed in that office. What about it? That Saturday morning, nine days ago, did any of you see Mr. O'Malley address an envelope on a typewriter?"
No reply. He had their eyes all right, but not their tongues.
He nodded understanding^. "It may be, of course, that he used a machine that wasn't under observation. Or he may have been seen by one of the staff who is not present, and that will bear inquiry. But I should make sure that all of you understand the situation. This envelope is vital evidence. If Mr. O'Malley handled it and typed an address on it, it will probably show his prints, for I don't suppose he wore gloves in the office that
morning. Not only that, it will be a simple matter to learn which machine it was written on. If it was a machine that is on the desk of one of you ladies, and you were there that morning, and Mr. O'Malley denies that he used it, you may find yourself in an uncomfortable spot. The police may properly ask-•"