Inquisitor Ravenor, the possessor of powerful psi-power and virtually unlimited powers puts himself and his combat team on a dangerous edge. 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 an apostate, and in the eyes of his colleagues he is now a little better than a heretic. In search of an answer about the whereabouts of Moloch, Ravenor does not shy away from seeking help from the Witch House of Utohra, which has a mysterious triportal 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 tyrannids outside the door of the triportal brings death to all mankind.