Saving the world should be easier. When airship captain Kaysana meets Sten the last thing she wants to do is have mad rough sex with him while bound by ropes and clamps…but fate pencils in their appointment. The lust plague strikes. From her infected crew, zombies arise. With her ship gone, she must rely on Sten, a human clone, a man who has fought all his life to master himself. She despises his kind and detests Sten’s growing hold on her. Though he never takes no for an answer, surely it’s the plague that makes yes slip from her tongue like melted butter? Or should she blame her own traitorous heart? Hordes of slavering zombies await them. Sten and Kaysana unlimber weapons, don goggles, and set a course for the origin of the plague. Yet victory will be hollow if they cannot also solve the puzzle of their hearts.