
The Sign of the Four (1890), also called The Sign of Four, is the second novel featuring Sherlock Holmes written by Sir Arthur Conan Doyle. Also contained in: [Adventures of Sherlock Holmes]( [Adventures of Sherlock Holmes]( [Annotated Sherlock Holmes. 1/2]( [Best of Sherlock Holmes]( [Boys' Sherlock Holmes]( [Celebrated Cases of Sherlock Holmes]( [Complete Sherlock Holmes]( [Complete Sherlock Holmes]( [Illustrated Sherlock Holmes]( [Original Illustrated Strand Sherlock Holmes]( [Sherlock…