Near-purebred home nocturnus Adrian Breze and his human being mate, Ellen, thought they had handled his twin sister, Adrienne. In fact, they believed she was inactive.

But she survived and now prospects a faction from the Shadowspawn-the ancient, shape-shifting, blood-drinking breed of dog who secretly control the world-that wants to leave just enough from the human race alive to fulfill their hunger and serve their requirements. She has only hatred and contempt for her brother, who continues to be privately of mankind, fighting with the Brotherhood against the Shadowspawn.

To beat him, she has suborned his mentor-the ideal warrior from the Brotherhood. The person thinks he’s getting a weapon to the Council of Shadows that may wipe out the Shadowspawn’s leaders. In truth, his actions will make Adrienne demon goddess from the globe…unless Adrian and Ellen can turn him back in time.