“What! Lestrade stared at him in amazement. “You are joking.”
“I was never more serious in my life. A shocking crime has been committed, and I think I have now laid bare every detail of it.”
“And the criminal?”
Holmes scribbled a few words upon the back of one of his visiting cards and threw it over to Lestrade.
“That is the name,” he said. “You cannot effect an arrest until to-morrow night at the earliest. I should prefer that you do not mention my name at all in connection with the case, as I choose to be only associated with those crimes which present some difficulty in their solution. Come on, Watson.” We strode off together to the station, leaving Lestrade still staring with a delighted face at the card which Holmes had thrown him.
“The case,” said Sherlock Holmes, as we chatted over our cigars that night in our rooms at Baker Street, “is one where, as in the investigations which you have chronicled under the names of the ‘Study in Scarlet’ and of the ‘Sign of Four,’ we have been compelled to reason backward from effects to causes. I have written to Lestrade asking him to supply us with the details which are now wanting, and which he will only get after he has secured his man. That he may
