He is McKell, a half-blooded vampire warrior able to manipulate time in short bursts. She is the human AIR agent - Alien Investigation and Removal -- sent to capture him. Hide-and-seek ensues, and the game has never been so sexually charged. While they should have been enemies, they become lovers. And together, they must discover the truth of his origins -- his other half - before they are forced to part . . . forever . . .