About the book: year / Demid Korobov, candidate of biological sciences, did not at all intend to become a fighter against the Spirits of Darkness, which regularly break into our world from another universe and inhabit human bodies, turning their victims into great villains, sorcerers, maniacs and murderers. However, no one asked him. The rebellious spirit of An-Tirith penetrates his consciousness, and from that moment Demid turns into a destroyer of supernatural creatures.