Inquisitor Ravenor, the owner of powerful psionic power and virtually unlimited powers, puts himself and his combat team on a dangerous line. In his pursuit of the elusive heretic Sigmund Moloch, he decides to violate the direct instructions of his superiors and, worse, his own principles. Ravenor becomes a renegade, and in the eyes of his colleagues he is now little better than a heretic. In search of an answer to the whereabouts of Moloch, Ravenor does not hesitate to seek help from the Witch House of Uthohr, which has the mysterious triple-portal technology. This enterprise miraculously does not end with the death of both the inquisitor himself and his people. They survived, but what saved them from the clutches of the tyranids behind the door of the triportal brings death to all humanity...