The Sign of Four - Sir Arthur Conan Doyle

A secret pact between four convicts and two prison guards over the division of buried treasure can only lead to one thing: murder and another case for Sherlock Holmes and Dr Watson. The Sign of the Four is the second Sherlock Holmes novel and in many ways presents a more human side to the great detective. For instance the reader finds out about his drug habit and we discover that Holmes is not as omnipotent as we might imagine. And for the fortunate Dr Watson there is the opportunity to meet a person who will change his life forever.