The novel is a dark and philosophical exploration of the human condition, set in a remote Austrian village during the Middle Ages. It follows the story of a group of young friends who encounter a mysterious and supernatural boy named Satan, who claims to be an angel and demonstrates his otherworldly powers through a series of thought-provoking and often unsettling miracles. As the narrative unfolds, the boy challenges the villagers' beliefs and perceptions of morality, good and evil, and the nature of existence, leading to a profound and controversial climax that questions the very fabric of reality and the role of a seemingly indifferent universe.

The 2361st greatest book of all time