Faithless: Book One of the Alyce Kerr, Faith Healer Trilogy by Yolanda Sfetsos. Alyce Kerr is a celebrity Faith Healer. Her power comes from a binding with a demonic entity. Every time he gives her the power to heal, he sucks a little more of her soul into him. But now her ex, Ross, is in town. He's been watching from the shadows and Alyce is finding it harder to ignore him... even if he did try to kill her three years earlier. Could Ross be the answer to ending her connection to the demon killing her inside?