"Never! I carry it, as you see, on a steel chain. It comes off at night and goes on in the morning. Only my wife could have had it in her possession. You are not going to accuse her of taking an impression, are you?" asked Fane scathingly. "Does Mrs. Fane know the woman?" asked Derrick, passing over this ironical speech. "No. She never set eyes on her. No one knows who the woman is." "Strange! Strange! I wonder why she should be killed in your house?" "Don't you know her name?" asked Fane. "No. There is no mark on her linen; no cards or letters in her pocket. She came out of the darkness into your house, and has been swallowed up by the darkness of the grave. We know no more. At the inquest something may transpire." "I sincerely hope so," said Fane bluntly. "The whole thing is most disagreeable. I shall have to give up Ajax Villa. My wife is quite upset. The affair will put me to great expense. Good-day." "One moment. Do you know a young man with a pointed beard?" "Not that I can recall," replied Fane after a pause. "But of course I may have met such a person." "Well"--Derrick gave up his questions in despair--"we must wait for the inquest." But here a fresh disappointment awaited him. Nothing came to light at the inquest likely to throw light on the mystery. Geason proved that the unknown woman had been stabbed from behind and had died almost immediately. He was positive that she had been dead five hours when he was called in. If this were so, the woman who sang the song could not be the dead one. Nor could the young man who entered into conversation with Mulligan have been sent to lure him away so that the murder might take place. When the young man came out of the house the woman must have been dead three hours. The doctor firmly held to this opinion, and thereby perplexed the jury and upset the theories of Derrick. Various were the opinions given by those present during the interview. Some thought this, some that, and every one had his own pet solution of the mystery. But the evidence was scanty. Both Mr. and Mrs. Fane stated that they knew nothing of the woman. The husband insisted that the latch-key had never been out of his possession, and the wife asserted that he had been sick in bed miles away at the time the crime was committed. Mulligan described his meeting with the strange young man and the conversation which had ensued; also his discovery of the body, and how he had entered the house. All inquiries on the part of the police failed to prove the identity of the dead. Tracey stated how he had missed his motor-car, and evidence was forthcoming to show that it had been left in the Charing Cross yard. But no one seemed to know who had brought it there. The result of this crop of scanty facts was obvious. The jury brought in a verdict against some person or persons unknown.