When a will from her dead father decrees spunky succubus Chloe into the protection of the renowned vampire commander, Tyrian en Kulev, she does what any girl would do and casts a spell. Things take a turn for the worse when the spell Chloe and her sisters perform summons an ancient demon from deep within the earth. Now Chloe's being hunted by a demon set on killing her and she has no choice but to turn to the cold-hearted vampire commander for help. Surprisingly, Chloe finds that she doesn't mind her new Protector as much as she thought she would. His cold, impassionate nature needs a firm push to show his true colors, but when those colors shine, Chloe sees a beautiful spark of fire inside him - one she longs to ignite herself!

Tyrian en Kulev always pays his debts. When Francis Bellum dies and orders Tyrian to act as his eldest daughter's Protector, Tyrian resigns himself to the position. What should have been a simple deal - keep her in the castle, protect her - has turned difficult. Chloe comes to him with a demon trying to kill her and a sexy attitude that keeps invading his thoughts everywhere he goes. The little succubus easily grabs hold of the heart he'd kept locked away for so long and makes him feel once again. But can they defeat the demon that haunts her and can Tyrian overcome his past and move on to a new future with Chloe?