Assume that angels exist. Assume, too, that while their powers are impressive, they must operate within the physical laws of the universe. Now, assume that one beautiful angel has, for reasons of her own, left the comfort and safety of heaven. The futures of humankind and those who dwell in heaven hang in the balance. Angel Cassia decides to teach her paranormal skills to Chuck, a very ordinary man she rescued in the wilderness. After all, she will...