Picture London, December 1893. The city is in mourning and angry at the man who killed a remarkable man. Sherlock Holmes is dead, killed at Reichenbach Falls by his creator, Arthur Conan Doyle. Doyle is amazed that people have responded as if Holmes, the character who he honestly hates, was a real person.
Jump ahead in time to 2010. The Baker Street Irregulars, a group of Holmes devotees, have gathered in New York for their annual get-together. The highlight this year is to be a presentation by Alex Cale. He has announced that he found the missing diary chronicling the years between when Doyle killed Holmes off and brought him back again in The Hound of the Baskervilles. Unfortunately, Alex is killed before he can make his presentation, and our main character, Harold, the youngest and newest Irregular, decides he needs to solve the case, using all he has learned from Holmes along the way. He is helped, or hindered, along...