“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.

“Have you got them? Have you found them?” she panted.

“No, Mrs. Straker. But Mr. Holmes here has come from London to help us, and we shall do all that is possible.”