Serena never believed in the Devil until she accidentally awakens an ancient curse hidden inside her family's mansion. Now demons are hunting her, and the only person who can protect her is Lucifer—the cold, mysterious King of Hell. But Lucifer isn't the monster everyone believes him to be. As Serena discovers the truth about his tragic past, she finds herself falling in love with the Devil himself. Their love is forbidden, and an ancient prophecy threatens to tear them apart. Heaven wants Serena dead, Hell wants her soul, and a terrifying darkness is awakening. Lucifer must choose between saving the woman he loves and protecting the worlds he has sworn to defend. She was taught to fear the Devil. No one warned her she'd fall in love with him.