observed the way in which he held his head and swung his cane. A steady, respectable, middle-aged man, too, on the face of him⁠—all facts which led me to believe that he had been a sergeant.”

“Wonderful!” I ejaculated.

“Commonplace,” said Holmes, though I thought from his expression that he was pleased at my evident surprise and admiration. “I said just now that there were no criminals. It appears that I am wrong⁠—look at this!” He threw me over the note which the commissionaire had brought.

“Why,” I cried, as I cast my eye over it, “this is terrible!”

“It does seem to be a little out of the common,” he remarked, calmly. “Would you mind reading it to me aloud?”

This is the letter which I read to him⁠—

There has been a bad business during the night at 3, Lauriston Gardens, off the Brixton Road. Our man on the beat saw a light there about two in the morning, and as the house was an empty one, suspected that something was amiss. He found the door open, and in the front room, which is bare of furniture, discovered the body of a gentleman, well dressed, and having cards in his pocket bearing the name of “Enoch J. Drebber, Cleveland, Ohio, U.S.A. ” There had been no robbery, nor is there any evidence as to how the man met his death. There are marks of blood in the room, but there is no wound upon his person. We are at a loss as to how he came into the empty house; indeed, the whole affair is a puzzler. If you can come round to the house any time before twelve, you will find me there. I have left everything in statu quo until