The game, as always, is afoot. In this collection of cases, Sherlock Holmes, the most formidable mind in all of London, turns his razor-sharp attention to some of his most baffling investigations yet. From the curious incident of a racehorse gone missing to the dark secrets of a dying detective’s family, Watson faithfully records it all, one astonishing deduction at a time. But lurking behind every case, pulling strings from the shadows, is Professor Moriarty, Holmes’s most dangerous adversary yet. The game between them has only one ending. And not even Watson sees it coming. Doyle at his most thrilling. Holmes at his most brilliant. And an ending that shook the world.