Dr. Watson is missing! Moriarty, Sherlock Holmes nefarious archnemesis, has left an elaborate trail of clues, but the clock is ticking Holmes finds himself at the end of the trail only to be stumped by an intricate lock. The doors will soon slam shut so he must solve the puzzle quickly! Can you help!? Use the key to move blocks in the right sequence to release the lock and rescue Watson. Includes wooden lock puzzle, metal key, and solution.