Vellum by Hal Duncan is the first book in The Book of All Hours series, set in 2017, where angels and demons—now transformed into unkin—search for the mythical Book of All Hours. This book contains the blueprint of all reality, hidden within the Vellum, a vast realm where past, present, and future collide. As unkin prepare for war, a fallen angel and a renegade devil confront each other, and the Vellum itself is destined to burn.
