hounds proves that this man could not have been the murderer."
"On the contrary," said Thorndyke, "the presence of this man with bloody hands confirms the other evidence, which all indicates that the hounds were never on the murderer's trail at all. Come now, inspector, I put it to you: Here is a murdered man; the murderer has almost certainly blood upon his hands; and here is a man with bloody hands, lurking in a tree within a few feet of the corpse and within a few minutes of its discovery (as is shown by the footprints); what are the reasonable probabilities?"
"But you are forgetting the bloodhounds, sir, and the murderer's knife," urged the inspector.
"Tut, tut, man!" exclaimed Thorndyke; "those bloodhounds are a positive obsession. But I see a sergeant coming up the drive, with the knife, I hope. Perhaps that will solve the riddle for us."
The sergeant, who carried a small dispatch-box, halted opposite the tree in some surprise while we descended, when he came forward with a military salute and handed the box to the inspector, who forthwith unlocked it, and, opening the lid, displayed an object wrapped in a pocket-handkerchief.
"There is the knife, sir," said he, "just as I received it. The handkerchief is the sergeant's."
Thorndyke unrolled the handkerchief and took
