“What did you do then?” asked Landis quietly.
“Mr. Graham had fallen in the doorway, so I ran around through the hall into the library and switched on the lights as I did Saturday night. The end of the library was deserted and the door was open. I ran to the end. The hall was empty. I came back. Stimson had appeared and was helping Mr. Graham to his feet. The others were gathering so I went into the front room to try and quiet Susan. That is all I know.”
“Why did you lock your door when you came downstairs at six-thirty?” Bernard demanded. “You don’t usually lock your door, do you?”
Miss Mount started very slightly and stared at him.
“I do not! I never lock my door. I did not lock it this evening, Mr. Bernard!”
“A minute or two after Graham was helped upstairs, Mrs. Graham went across the hall to your room to get some bandage. Your door was locked then!”
“I think she must have been mistaken.”
Bernard’s instant retort was delivered with open suspicion.
“I don’t think she was mistaken!”