She put her finger-tips to her forehead.
"You don't mind?" she asked Hubert.
Hubert gestured the courteous assent of a man who, privately, would like to put her across his knee and wallop her.
"You couldn't have exchanged those daggers before you went out of the room," said Ann. "Because the same thing applies to you as applies to the rest of us. You never went near that table at any time. When you were called out of the room, I remember watching you. You never left the semi-circle before you walked straight out of the room after Daisy."
"That also," agreed Sharpless, "is true."
"Sir. Madam. I thank you. But—"
"But," said Ann, "I don't see how you — oh, please! — you or anybody else could have got in here to do it afterwards. Or to do it at any time, if it comes to that."
Dr. Richard Rich appeared to be considerably taken aback by the rush with which this quiet girl had gathered up the proceedings in her own hands.
"Nobody could have got in at any time? I don't follow that."
"Well… for instance, the door."