“Sorry, Mr. Holmes, but that’s the law.”

“Exactly, Sergeant, you could not do otherwise.”

“I expect there was good reason for your presence there. If there is anything I can do—”

“It’s a missing lady, Sergeant, and we think she is in that house. I expect a warrant presently.”

“Then I’ll keep my eye on the parties, Mr. Holmes. If anything comes along, I will surely let you know.”

It was only nine o’clock, and we were off full cry upon the trail at once. First we drove to Brixton Workhouse Infirmary, where we found that it was indeed the truth that a charitable couple had called some days before, that they had claimed an imbecile old woman as a former servant, and that they had obtained permission to take her away with them. No surprise was expressed at the news that she had since died.

The doctor was our next goal. He had been called in, had found the woman dying of pure senility, had actually seen her pass away, and had signed the certificate in due form. “I assure you that everything was perfectly normal and there was no room for foul play in the matter,” said he. Nothing in the house had struck him as suspicious save that for people of their class it was remarkable that they should have no servant. So far and no further went the doctor.

Finally we found our way to Scotland Yard. There had been difficulties of procedure in regard to the warrant. Some delay was inevitable. The magistrate’s signature might not be obtained until next morning. If Holmes would call about nine he could go down with Lestrade and see it acted upon. So ended the day, save that near midnight our friend, the sergeant, called to say that he had seen flickering lights here and there in the windows of the great dark house, but that no one had left it and none had entered. We could but pray for patience and wait for the morrow.

Sherlock Holmes was too irritable for conversation and too restless for sleep. I left him smoking hard, with his heavy, dark brows knotted together, and his long, nervous fingers tapping upon the arms of his chair, as he turned over in his mind every possible solution of the mystery. Several times in the course of the night I heard him prowling about the house. Finally, just after I had been called in the morning, he rushed into my room. He was in his dressing-gown, but his pale, hollow-eyed face told me that his night had been a sleepless one.

“What time was the funeral? Eight, was it not?” he asked eagerly. “Well, it is 7:20 now. Good heavens, Watson, what has become of any brains that God has given me? Quick, man, quick! It’s life or death—a hundred chances on death to one on life. I’ll never forgive myself, never, if we are too late!”