The hero of the novel, the “strange knight” Henri de Ventadorn, goes before our eyes from a mercenary, whom Pope Innocent III instructs to find and steal the Holy Book of the Bogomils, to the Chief Guardian of this Book, who, in the name of truth, chooses death at the stake of the Inquisition. “The book was a spark that ignited the fires, and on these fires the people who brought the light burned. But they themselves chose their path.” The unusual combination of adventurism and sacrifice gives rise to the special attractiveness of the image of the main character.