The hit BBC series Sherlock offers a fresh, contemporary take on the original Sir Arthur Conan Doyle stories, and has helped introduce a whole new generation of fans to the legendary detective. This TV tie-in edition to Sir Arthur Conan Doyle's second collection of Sherlock Holmes short stories, which was first published in 1894, includes the infamous The Final Problem . It is one of Conan Doyle's favourite Sherlock tales and the detective's deadliest challenge. This is the ultimate thriller, in which Sherlock meets his intellectual match: the criminal mastermind Professor Moriarty. As Moriarty pushes Sherlock to his intellectual limits, this game of cat and mouse will test not only their wits but their mortality.