“If you are going back to Pitt Street you might see Mr. Horace Harker. Tell him from me that I have quite made up my mind, and that it is certain that a dangerous homicidal lunatic with Napoleonic delusions was in his house last night. It will be useful for his article.” Lestrade stared. “You don’t seriously believe that?” Holmes smiled. “Don’t I? Well, perhaps I don’t. But I am sure that it will interest Mr. Horace Harker and the subscribers of the Central Press Syndicate.

