Sara Winters never had reason to acknowledge the existence of Angels or Demons. Not until a rare being, half angel and half demon, rescues her from a demon attack. As an antique book dealer she has spent her adult life looking for one particular, mysterious Book, and her search has led her straight into Drake Domitaine's arms. Drake doesn't have time to deal with a frail human woman but he has to protect her from the very same demons that are now planning a war on the human race. Sara and Drake's fated love is doomed from the start. Or is it? Can a human woman and Angel-Demon be together? It's now a race against time to find the Book which has become an important part of pending war to save humankind. And in the end, will Sara and Drake overcome the insurmountable odds of their love continuing?