Demon's Destiny - Valerie Twombly - Bog

Famed for his cocky attitude and womanizing lifestyle, Baal likes to make his own rules. But being the most powerful demon in Hades’ army comes with a steep price. Namely, a command to mate with the human he is bound to protect. When the lord of the Underworld reveals the female’s true identity, Baal vows he will never love her. Even though she may destroy him, he soon discovers it’s a promise he might not be able to keep.
When her sibling goes missing, Ranata finds herself at the mercy of those who intend to make her Hell’s next sacrifice. With the world embraced in the wrath of a power-hungry demigod, and a sister now in his clutches, she discovers she is not fully human and now must face the biggest challenge of her life. Mating a demon is an insane idea, but she will do anything to save her sister. Falling in love with him might be even crazier.