Valley of Fear

The Valley of Fear by Arthur Conan Doyle is one of many stories about Doyle's famous detective, Sherlock Holmes. At the beginning of this novel, Holmes gets a message from one of Professor Moriarty's agents-Fred Porlock. From time to time, Porlock sends Sherlock inside information about Moriarty's endeavors. Despite the fact that the law sees Moriarty as innocent, Sherlock firmly believes him to b...