Mary Morstan has received a pearl in the post every year since her father's disappearance. This leads Holmes and Watson to the truth about a secret pact between four convicts during the Indian Rebellion of 1857.
DirectorPeter Hammond
WritersJohn Hawkesworth, Arthur Conan Doyle
Part of
Includes: The Sign of Four, The Hound of the Baskervilles, The Master Blackmailer, The Eligible Bachelor, The Last Vampyre
