An extraordinary, incendiary debut from a rare new talent, Vellum showcases a complex and sophisticated level of writing coupled with a fecund imagination that defies description. It’s 2017 and angels and demons walk the earth. Once they were human; now they are unkin, transformed by the ancient machine-code language of reality itself. They seek The Book of All Hours, the mythical tome within which the blueprint for all reality is transcribed, which has been lost somewhere in the Vellum—the vast realm of eternity upon which our world is a mere scratch. The Vellum, where the unkin are gathering for war. The Vellum, where a fallen angel and a renegade devil are about to settle an age-old feud. The Vellum, where the past, present, and future will collide with ancient worlds and myths. And the Vellum will burn. . . .