"Himself? How do you know the visitor was a man? It might have been a woman. Besides, Miss Bull told me that the door was locked as usual, and that she took the key this morning to open it from Mrs. Jersey's pocket. No, Train, the person who killed Mrs. Jersey is in the house. But were I you I should say as little as possible to the inspector about this." Leonard took this advice, and, when questioned, simply stated that he had retired to bed at eleven and had heard nothing. Brendon made a similar statement, and Quex saw no reason to doubt their evidence. He questioned all the boarders and all the servants, but could learn nothing likely to throw any light on the darkness which concealed the crime. No one had heard a noise in the night, no one had heard a scream, and it was conclusively proved that every one in the house was in bed by eleven o'clock; the majority, indeed, before that hour. Jarvey had been the last to retire, at half-past ten o'clock, and then he had left Madame in her sitting-room with a book and a glass of negus. She sent him off in a hurry and with, as he expressed it, "a flea in his ear"--being somewhat out of temper. It was thus apparent that Margery, who saw Madame at the striking of the hour, was the last person to see her alive. Mrs. Jersey went to her own sitting-room and there had been struck down. "It was about twelve o'clock that she was stabbed," said the doctor, after he had made his examination; "but I can go only by the condition of the body. I should say a little before or after twelve. She was stabbed in the neck with a sharp instrument." "With a knife?" said the inspector. "No," rejoined the doctor, decisively, "it was with a dagger--by a kind of stiletto. It was not by an ordinary knife that the wound was inflicted," and then the doctor who loved to hear himself talk, went into technical details about the death. He proved beyond doubt that Mrs. Jersey must have died almost immediately with hardly a groan. For some reason Quex took one and all into the chamber of death and showed them the corpse. Perhaps he expected that the sight would shake the nerves of the murderer, supposing the murderer was among those who saw the body. But no one flinched in the way he expected. Mrs. Jersey was as dead as a door-nail, but no one knew and no one could prove who had struck the blow. CHAPTER IV A NINE-DAYS' WONDER