The final book in the Wall Street Journal bestselling Demon Days, Vampire Nights Series! With Lucifer wanting revenge and the elves desperate to hold onto their power, a battle is inevitable. The question is, which side will Reagan choose? The elves have treated her and her friends badly. Lucifer held her captive. Will she claim revenge...or will she seek to help balance the worlds? Is that even possible? Regardless, she's not one to back away from trouble. As the worlds heat up and fates are realized, Regan's future is anything but decided.