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...