Sherlock Holmes and his companion Dr Watson unravel a mystery of hidden treasure and murder. Miss Mary Morstan arrives at 221B, Baker Street to request help with the mystery of her missing father, her anonymous gifts of pearls and a letter requesting her to meet an unknown person that evening. Mary and Watson are immediately attracted to each other, but Watson realizes that since she is a client, he shouldn?t act on his feelings until the case is resolved.This is the second novel of the iconic detective character Sherlock Holmes. Sir Arthur Conan Doyle wrote four novels and 56 short stories featuring the fictional detective.