“This may interest you, Lestrade,” he remarked, holding it out. “The murder was done with it.”

“I see no marks.”

“There are none.”

“How do you know, then?”

“The grass was growing under it. It had only lain there a few days. There was no sign of a place whence it had been taken. It corresponds with the injuries. There is no sign of any other weapon.”

“And the murderer?”

“Is a tall man, left-handed, limps with the right leg, wears thick-soled shooting-boots and a grey cloak, smokes Indian cigars, uses a cigar-holder, and carries a blunt penknife in his pocket. There are several other indications, but these may be enough to aid us in our search.”