When you make a deal with the Devil, it can be Hell... Acelynn made a deal to save her sister's soul, kill Satan's son or become Satan's bride. It seemed impossible to find a legend like Cain, but after decades she finally got a lucky break. This break happens to be one sexy immortal, the type of man Acelynn can't let herself fall for. He's full of hope, a light shining brightly, and all Acelynn knows is darkness. And the darkness keeps growing as vampires, werewolves, and other magical creatures change the course of her journey. Will her heart be the only thing that stands in the way of saving her sister's soul? Or will she always be bound by sacrifice?