A little girl named Polly pickpockets a gem Professor Moriarty has just stolen, and he is determined to stop at no end to get it back. The Royal Navy asks Hound and Watson to help them recover a submarine stolen by Professor Moriarty.
A little girl named Polly pickpockets a gem Professor Moriarty has just stolen, and he is determined to stop at no end to get it back. The Royal Navy asks Hound and Watson to help them recover a submarine stolen by Professor Moriarty.