Murder Rooms: The Dark Beginnings of Sherlock Holmes. A detective drama loosely based upon the real-life investigative work of Sherlock Holmes creator Sir Arthur Conan Doyle. A young Conan Doyle ...

Forget the Robert Downey Jr. and Henry Cavill movies. There are many more hidden Sherlock Holmes gems out there.

The puzzle room found west of the main entrance rewards you with a Ruby on completion. Here's how to solve it. In the middle of the room is a small platform, floating high above a pool of water.