Vampire Potentate D'eclat has been betrothed to Jack's daughter Azul, but one of the servants to Azul is far more appealing to him. Vampires use humans as surrogates, not as wives, but when a soothsayer predicts vampires will be able conceive pregnancies in the future through a bloodline connected to D'eclat, he realizes it might be time to break tradition.
Jack realizes the truth behind his fate as vampire slayer and hunts a royal vampire that only he can kill.