“There are two keys to her door. I have one. Herr von Essen has the other.”
“She has had word from outside, recently, probably yesterday or to-day.”
“It is impossible.”
“It has happened. How could it happen?”
“There is no way. Her door had not been opened by any one but myself and Herr von Essen.”
“Her window?”
“Guarded from the moment she awakes until midnight.”
“But between midnight and morning?”
“It is not guarded. But no one could—”
“Search her room,” said Cantor. “Look for a note, a letter, torn scraps of paper, ashes.”