This novel by Valerio Evangelisti reinvents the 14th-century inquisitor Nicolás Eymerich as a conflicted protagonist navigating complex layers of historical fiction, fantasy, and science-fiction. Set within three interwoven timelines (medieval Aragon, contemporary science, and a dystopian future) the narrative examines the nature of power, dogma, and heterodox belief through Eymerich’s investigations of sinister cults, metaphysical enigmas and cosmic conspiracies. The style is dense, ambitious and genre-blending: by merging medieval theology, modern physics and speculative futures the book contributes to Italian speculative literature by refusing tidy genre boundaries. Its unique feature lies in positioning a historically-based figure as an “anti-hero” whose zeal for orthodoxy becomes a mirror for modern anxieties about intolerance, surveillance, and the monstrosities of ideology.