Arthur Conan Doyle's The Valley of Fear (1915) is the fourth and final installment of the Sherlock Holmes crime novels. This work of riveting suspense and intrigue is loosely based on the infamous 18th Century Irish secret society, The Molly Maguires. First published in serial form in The Strand Magazine in 1914 and 1915, this novel brings Sherlock Holmes face-to-face with the evil Professor Moriarty, one of the most nefarious characters of crime fiction. The Valley of Fear, much like the first Sherlock Holmes novel (A Study in Scarlet) is told in two parts; the first is the bewildering mystery of a murder at a remote English estate, and the second section is told by the man initially thought to be the murder victim, set in the Midwest of the United States. When Sherlock Holmes receives a cipher message at Baker Street, he quickly deciphers its message- that John Douglas, the resident of a remote estate in Sussex is in danger. Soon after decoding the letter Holmes is visited by a policeman and friend who informs him that Douglas has been murdered at Birlstone, the estate. When Holmes and Watson arrive at the scene, they are met with a bewildering array of clues, including a disfigured body, bloody footprints, and a missing dumb-bell. When the house servants are interrogated, it becomes clear that there is a conspiracy that extends to a secret society called The Freeman, in a Western coal mining town in the United States. The second part of the book moves to the story of the mafia-like gang in the wild west, and ultimately to Holmes's nemesis, the infamous Professor Moriarty. With an eye-catching new cover, and professionally typeset manuscript, this edition of The Valley of Fear is both modern and readable.