"Arrest him!" cried Peters.
"We know where to lay our hands on this gentleman if he is wanted," said the sergeant majestically, "but you'll have to go, Mr. Holmes."
"Yes, Watson, we shall have to go."
A minute later we were in the street once more. Holmes was as cool as ever, but I was hot with anger and humiliation. The sergeant had followed us.
"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.