Sherlock Holmes, THE SIGN OF THE FOUR, Sherlock Holmes Complete Collection, Book # 2

First published in 1890, THE SIGN OF THE FOUR is Sir Arthur Conan Doyle's second book starring legendary detective, Sherlock Holmes. The story is set in 1887. It is complex, involving a secret between four ex-cons from India and a hidden treasure. More complex than the first Holmes novel, THE SIGN OF THE FOUR also introduces the detective's drug habit and leaves breadcrumbs for the reader that lead toward the final resolution.