a week—and on coming down to the sitting-room, found Thorndyke's man, Polton, putting the last touches to the breakfast-table, while Thorndyke himself was poring over two photographs of fingerprints, of which he seemed to be taking elaborate measurements with a pair of hair-dividers. He greeted me with his quiet, genial smile and, laying down the dividers, took his seat at the breakfast-table.
"You are coming with me this morning, I suppose," said he; "the Camberwell murder case, you know."
"Of course I am if you will have me, but I know practically nothing of the case. Could you give me an outline of the facts that are known?"
Thorndyke looked at me solemnly, but with a mischievous twinkle. "This," he said, "is the old story of the fox and the crow; you 'bid me discourse,' and while I 'enchant thine ear,' you claw to windward with the broiled ham. A deep-laid plot, my learned brother."
"And such," I exclaimed, "is the result of contact with the criminal classes!"
"I am sorry that you regard yourself in that light," he retorted, with a malicious smile. "However, with regard to this case. The facts are briefly these: The murdered man, Caldwell, who seems to have been formerly a receiver of stolen goods and probably a police spy as well, lived a solitary
