When Bengt pushes Margit and her daughter Ivy out of the way of an oncoming car, he doesn't realize it will embroil him in a secret worth killing for. Bengt doesn't need any more secrets, deadly or not, because he has one of his own. He and Tian are a dual, two merged people. They already risk kidnapping by those who covet Tian's magical ability to cure. They're trying to find a way to live ordinary lives in the modern world, but "The Secret of Santua" will lead them to a few vampires, a were-chimpanzee, and someone who is trying to kill Ivy.