You'll be taking on the role of Sir Arthur Conan Doyle's Sherlock Holmes, the world's most brilliant detective. Your mission: to retrieve the famous Musgrave Diamond, and thwart criminal mastermind Moriarty's diabolical scheme!

- This book's branching narrative puts YOU in the driving seat. Once you have found the solution to a puzzle, turn to the next entry as clearly indicated in the text.

- Use your observation, lateral thinking, and logic skills to uncover clues and solve mysteries. The beautifully, detailed illustrations are packed with information, so keep your eyes peeled!

- Are you a rookie detective, a seasoned sleuth, or a true master of deduction? Choose your difficulty level, then race against the clock to solve the mystery!

Fantastic fun for puzzle fans aged 8+.