According to everything we know of the world’s most famous fictional detective, Sherlock Holmes died at the Reichenbach Falls in a desperate struggle with his nemesis, Professor Moriarty. But just as Arthur Conan Doyle felt compelled to resurrect his creation several years after killing him off, so authors postdating Doyle have found Holmes to be an irresistable character for their own work. Why the Holmes obsession? The simple answer is that we keep buying the new stories, and the latest writer to step into the post-Doyle fray, mystery writer Chris Carr, can actually boast of being officially sanctioned by the estate of Holmes’s creator, and says that he is determined to return the detective to the world that Doyle created for him.