“Why?” asked Bernard suddenly.
“He had neglected to tell me and—additional ordering might have been necessary.”
“Pretty late for that, wasn’t it?”
“The local stores are open until nine on Saturday night, Mr. Bernard. As it happened, it wasn’t necessary.”
“Through which door did you enter the library, Miss Mount?” Landis inquired.
“Through the door at the end there, by the armor.”
“Was it open or closed when you reached it?”
“I’m not certain because I did not notice. Another simple deduction, however, leads me to feel sure that it was open and back against the wall as usual. It was always left open. If it had been closed then, I am quite convinced that I would have noticed it, as I did later.”
“Excellent reasoning,” contributed Bernard. “Open some time after seven, our door was!”
“Thank you,” replied Miss Mount evenly. “I did not remain in the library long. Mr. Harrison seemed tired and out of sorts—”