Sherlock Holmes may be the world's greatest detective, but sometimes even he needs help. Join the renowned sleuth and his assistant Dr Watson in ten original cases as they travel across Victorian England. Using Watson's illustrated notes, can you unravel the twists and turns of each remarkable story? Who murdered the High Court judge, and why? How did the Baker Street Irregulars know the warehouse robbery was an inside job? And did the stonemason really die in a climbing accident?