A brand-new thrilling tale of madness, murder and reanimated corpses in the Cthulhu Casebooks series, where Sherlock and Watson fight the fiendish plots of the terrifying and alien Mi-Go, from the New York Times bestselling author. It's 1929 and an ageing Dr John Watson, conscious of his imminent demise, finally sits down to write a fresh chronicle disclosing the true events behind his published accounts of Sherlock Holmes's exploits. In these pages, Sherlock Holmes and his stalwart companion encounter reanimated corpses in Highgate Cemetery; a very different, though ever elusive, Irene Adler; tales of madness and murder in the frozen wastes of the north; grotesque organic machines; and much more. Each case brings the illustrious pair ever closer to the dramatic and terrifying truth about the mysterious aliens, the Mi-Go, and their plans for Earth?

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.