Using the key, move the bricks in the correct order to unlock the lock and overcome Moriarty's devious plan.

The sudden and unexplained disappearance of Dr. Watson on his way home to Baker Street quickly became headline news. However, the manner of his disappearance and where he is now remain a mystery.

To everyone, that is, except for Sherlock Holmes, who has been challenged by his arch-enemy Moriarty to save his friend before time runs out.

By solving Moriarty's intricate puzzles, Holmes finds himself deep in an underground prison where Watson is held captive. The clock is ticking, and Holmes must find a way to unlock the door. But he must act quickly before the doors close behind him, sealing their fate and leaving them both at the mercy of Moriarty.