"It is the man you have just watched down the street, Sir Karl. Well, to go on. My nieces were always talking of this new gentleman, a Mr. Strange, who had come to Foxwood to get up his health, and to read up for some divinity examination. That was their account. They said so much about him that I got curious myself: it was a new face, you see, Sir Karl, and girls go wild over that. One morning when I was starting for the office, the gig at the door, Jane ran out to me. 'Uncle,' she said, 'that's Mr. Strange coming down Mrs. Jinks's steps now: you can see him if you look.' I did look, Sir Karl, and saw the gentleman you have just seen pass. His face struck me at once as one that I was familiar with, though at the moment I could not tell where I had seen him. Remembrance came to me while I looked--and I knew him for an officer connected with the detective force at Scotland Yard."

Karl drew a long breath. He was listening greedily.

"About a year ago," resumed the lawyer, "my agent in London, Mr. Blair, had occasion to employ a detective upon some matter he was engaged in. I was in London for a few days at that time, and saw the man twice at Blair's--and knew him again now. It was this same Mr. Strange."

"And you say Strange is not his right name?"

"No, it's not."

"What is the right one?"

"Well, I can't tell you the right one, Sir Karl, for I cannot remember it. I am sure of one thing--that it was not Strange. It was a longer name, and I think rather a peculiar name; but I can't hit upon it. He must be down here on some private business, and has no doubt his own reasons for keeping incog. I recollect Blair told me he was one of the astutest officers in the detective force."

"Has he recognised you?"

"He could not recognise me," said Mr. St. Henry, "I don't suppose he ever saw me to notice me. Each time that he called on Blair, it happened that I was in the front office with the clerks when he passed through it. He was not likely to have observed me."

"You have not spoken to him, then?"