"And now," said Gimblet, "may I visit the scene of the crime?"
Mark took him first to his uncle's bedroom; a room austere in its simplicity, with bare white-washed walls and uncarpeted floor. No one could have hidden a sheet of paper in that room, thought the detective, as he gazed round it, after he had looked, with a feeling akin to guilt, on the features of the dead peer. He had not known how to protect this man from the dreadful fate that had struck him down from a direction so utterly unexpected, and he held himself, in a way, responsible for his death.
Then young Ashiel led him away, down a wide corridor into the billiard-room, and so into another passage, at the end of which a door of stout and time-darkened oak gave access to the library. It creaked noisily on its hinges, as he pushed it open and ushered Gimblet in. They stepped into a square room, comfortably furnished, with deep arm-chairs, and a large chippendale writing-table which stood at right angles to the bow window, so placed that anyone writing at it should have the light upon his left. It was rather a dark room, the walls being lined with books from floor to ceiling, except at two points: opposite the window an alcove, panelled in ancient oak, appeared in the wall; and above the fireplace, opposite the door, the wall was panelled in the same manner and covered by an oil painting, representing Lord Ashiel's grandmother. The polished boards were unconcealed by any rug or carpet, and reflected a little of the light from the window. An ominous discoloration near the writing-table showed plainly upon them.
In the glass of the mullioned casement was the small round hole made by the fatal bullet.
Gimblet glanced at the bureau on which the writing materials were set out in perfect order, and could not conceal his annoyance.
"Everything has been moved, I see," he said. "Why couldn't they leave it as it was for a few hours longer?"
"Nothing was touched till after the police had gone," said Mark. "I confess I did not think it necessary to leave things alone once they were out of the house. Not only have the housemaids been at work in here, but I spent most of the morning here myself, going through the papers in that bureau. Will it matter much?" He spoke with evident dismay.
"Never mind," said Gimblet, "I suppose Macross's people photographed everything, and I can get copies from them, I have no doubt. By the by, what did Sir David Southern say about having been in the room while you were in bed? Did he admit it; and did he say why he moved the body?"