A choose-your-own escape room adventure book based on one of the greatest detectives of all time—Sherlock Holmes! Sherlock Holmes, the great detective, has entrusted you with an important mission: to save his friend Watson! Locked in Moriarty's house, you will have to solve the puzzles invented by this diabolical criminal to hope to get out alive. Card games, an 1890 planisphere, mathematical puzzles . . . to be successful, you are going to have to be the best detective Sco