Walter is a gifted young singer who leaves his home in the forests of Germany in a quest for fame and love; he embarks on a series of adventures which leads him through the haunting landscapes of twelfth-century Europe. His encounter with the mysterious Brotherhood of Watchers drives him to the crusades, into a clash with the Doge in Venice and on to the disaster of Constantinople. But there is more to Walter than he dares imagine? What are the dark...