 "Pilgermann" is a historical fantasy which deals with the relationship between Judaism, Christianity and Islam.At the time of the book's setting Islam was the most technologically and culturally advanced of the three cultures and this is reflected in the comparatively sympathetic portrayal of Bembel and Muslim society as opposed to the brutality and hardship of European, Christian life.The book is suffused with Kabbalistic, Sufi and Christian mystical imagery, including references to the Tarot, the work of artists such as Brueghel and Bosch, the Gnostic idea of the Sophia and many others.