It is 1919 and the Great War has come to a close. But in the shadows of the worlds major cities, the killing has just begun. In this perilous time, as the division between order and chaos grows increasingly slim, a select group of visionaries have taken it upon themselves to ensure the safety of humanity. They are known as the Arcanum.In Londons stormy Hyde Park, Konstantin Duvall, the Arcanums founder, has been killed in a suspicious accident. Dismayed, the groups longest-lived member, Sir Arthur Conan Doyle, determines to avenge Duvalls deathand uncover the secret left in his wake. For the dead man possessed the worlds most powerfulnow missingartifact: the Book of Enoch, the chronicle of Gods mistakes, within whose pages lie the seeds for the end of everything. From the scene of the crime, Conan Doyle embarks on a path that leads him to the sleazy underworld of New York Citys Bowery and a series of deceptively disparatebut decidedly connectedmurders. And as he calls upon the scattered members of the Arcanum for aid, he also finds himself embroiled in a story of war as old as time itself. Not of a struggle between countries, but between darkness and light.Peopled with the twentieth centurys most famousand infamousfigures, here is an extraordinary tale in which the stakes go beyond the realm of humankindinto the divine.From the Hardcover edition.