Sherlock's greatest case : a thrilling interactive puzzle story

"This ingenious puzzle book puts you in control of your own interactive adventure. You'll be taking the role of Sherlock Holmes, the world's most brilliant detective. Your mission: to retrieve the stolen Musgrave Diamond, and thwart criminal mastermind Moriarty's diabolical sheme! Use your observation and logic skills to uncover clues. Then choose the correct answer from the selection of options to progress through the story in a race against tim...