"If you will get some of the servants, you can remove the body to any room convenient and make your examination. It's a clean stab into the heart, and it looks to me as if the person who used that knife had some knowledge of anatomy. Most people who strike for the heart get the middle of the left lung," said Mr. Flexen.

So saying, he gently drew the easy chair, in which the body was huddled, nearer the door by its back. Mr. Manley bade Holloway fetch Wilkins and two of the grooms, and then, eager for hints of the actions of a detective, so useful to a dramatist, gave all his attention again to the proceedings of Mr. Flexen, who was down on one knee on the spot in which the chair had stood, studying the carpet round it. He rose and walked slowly towards the door which opened into the library, paused on the threshold to bid Perkins examine the chair and the clothes of the murdered man, and went into the library.

He was still in it when the footman and the grooms lifted the body of Lord Loudwater out of the chair, and carried it up to his bedroom. Mr. Manley stayed on the threshold of the smoking-room. His interest in the doings of Mr. Flexen forbade him leaving it to superintend decorously the removal of the body.

Presently Mr. Flexen came back, and as he walked round the room, examining the rest of it, especially the carpet, Mr. Manley studied the man himself, the detective type. He was about five feet eight, broad-shouldered out of proportion to that height, but thin. He had an uncommonly good forehead, a square, strong chin, a hooked nose and thin, set lips, which gave him a rather predatory air, belied rather by his pleasant blue eyes. The sun wrinkles round their corners and his sallow complexion gave Mr. Manley the impression that he had spent some years in the tropics and suffered for it.

When Mr. Flexen had examined the room, though Inspector Perkins had already done so, he felt round the cushions of the easy chair in which Lord Loudwater had been stabbed, found nothing, and stood beside it in quiet thought.

Then he looked at Mr. Manley and said: "The murderer must have been some one with whom Lord Loudwater was so familiar that he took no notice of his or her movements, for he came up to him from the front, or walked round the chair to the front of him, and stabbed him with a quite straightforward thrust. Lord Loudwater should have actually seen the knife—unless by any chance he was asleep."

"He was sure to be asleep," said Mr. Manley quickly. "He always did sleep in the evening—generally from the time he finished his cigar till he went to bed. I think he acquired the habit from coming back from hunting, tired and sleepy. Besides, I came down for a drink between eleven and twelve, and I'm almost sure I heard him snore. He snored like the devil."

"Slept every evening, did he? That puts a different complexion on the business," said Mr. Flexen. "The murderer need not have been any one with whom he was familiar."

"No. He need not. But are you quite sure that the wound wasn't self-inflicted—that it wasn't a case of suicide?" said Mr. Manley.

"No, I'm not; and I don't think that that doctor—what's his name? Thornhill—can be sure either. But why should Lord Loudwater have committed suicide?"