"The Unclean Tor" by Roberto Calasso is a literary exploration of Daniel Paul Schreber's "Memoirs of a Nervous Illness." In this work, Schreber's complex system of delusions, which has fascinated people since Freud's time, is transformed into a captivating novel. Calasso masterfully combines myth and irony to reveal Schreber's hidden story. The author invites readers to dive into the deep abysses of the human psyche and to question the boundaries between reality and madness. The narrative is not only a literary homage but also a critical reflection on the nature of insanity and the quest for truth. With a paperback cover and in German, this book offers an engaging read for anyone interested in psychological and philosophical themes.