Sherlock Holmes carries a priceless coin, bestowed on him by the British Treasury, through the London streets when he suddenly realises that he\'s being followed by one of Moriarty\'s henchman! He must try to lose him by luring him into 221B Baker Street, escaping out the rear window and alerting Scotland Yard to arrest the trapped pursuer! Use the coin to navigate your way through the rooms, hallways, and hidden passages to make your escape! | Professor Puzzle Sherlock Holmes The Case of the Priceless Coin