These stories proved popular, prompting Mills and O'Neill to develop a regular series, "Nemesis the Warlock", which combined the early high-concept science fiction with fantasy in the "sword and sorcery" mould. Torquemada was promoted from chief of the Tube Police to Grand Master of Termight. Nemesis was revealed as a demonic alien with a horned dragon-like head based on the finned nose of his Blitzspear, fighting to protect aliens from Torquemada's genocidal tyranny, although his inhuman attitude and anarchic "Khaos" philosophy gave him an ambiguous morality; for example, in Book Five, "The Vengeance of Thoth", Nemesis is forced to hijack a bus full of children, which he then deliberately crashes, killing all on board as he escapes.