Sign of the Four

"e;The Sign of the Four"e; is Sir Arthur Conan Doyle's follow-up to his immensely successful "e;A Study in Scarlet"e;, where we first meet one of the most famous literary detectives of all time, Sherlock Holmes. "e;The Sign of the Four"e; is the mystery surrounding the disappearance Miss Mary Morstan's father. Every year on the anniversary of Miss Morstan's father's disappearance, Mary receives an anonymous gift of a priceless pearl. Miss Morstan solicits the help of Sherlock Holmes and Doctor Watson to unravel the identity and motive of her anonymous benefactor.