“This is a very singular knife,” said Holmes, lifting it up and examining it minutely. “I presume, as I see bloodstains upon it, that it is the one which was found in the dead man’s grasp. Watson, this knife is surely in your line?”
“It is what we call a cataract knife,” said I.
“I thought so. A very delicate blade devised for very delicate work. A strange thing for a man to carry with him upon a rough expedition, especially as it would not shut in his pocket.”
“The tip was guarded by a disk of cork which we found beside his body,” said the Inspector. “His wife tells us that the knife had lain upon the dressing-table, and that he had picked it up as he left the room. It was a poor weapon, but perhaps the best that he could lay his hands on at the moment.”
“Very possible. How about these papers?”
“Three of them are receipted hay-dealers’ accounts. One of them is a letter of instructions from Colonel Ross. This other is a milliner’s account for thirty-seven pounds fifteen made out by Madame Lesurier, of Bond Street, to William Derbyshire. Mrs. Straker tells us that Derbyshire was a friend of her husband’s and that occasionally his letters were addressed here.”
“Madam Derbyshire had somewhat expensive tastes,” remarked Holmes, glancing down the account. “Twenty-two guineas is rather heavy for a single costume. However there appears to be nothing more to learn, and we may now go down to the scene of the crime.”
As we emerged from the sitting-room a woman, who had been waiting in the passage, took a step forward and laid her hand upon the Inspector’s sleeve. Her face was haggard and thin and eager, stamped with the print of a recent horror.