The Cthulhu Casebooks

The stunning new novel from the New York Times bestselling author of The Age of Odin, in which the worlds of Arthur Conan Doyle and H.P. Lovecraft collide.It is the autumn of 1910, and for fifteen long years Sherlock Holmes and Dr John Watson have battled R'lluhloig, the Hidden Mind that was once Professor James Moriarty. Europe is creeping inexorably towards war, and a more cosmic conflict is nea...