S. finished reading The Sign of Four (Sherlock Holmes, #2) by Arthur Conan Doyle

Arthur Conan Doyle: The Sign of Four (Sherlock Holmes, #2) (2001)
The Sign of Four (Sherlock Holmes, #2) by Arthur Conan Doyle
The Sign of the Four (1890), also called The Sign of Four, is the second novel featuring Sherlock Holmes written …