Say I Do by Lucy Darling

Caleb Shepherd is one of the most powerful men in the city and also the most ruthless. He has everything he’ll ever need… or so he thought. When he meets a ray of sunshine who begins lighting up the darkest places in his life, he has no idea her world is falling down all around her.
She needs saving, but he’s no prince. Then again, he wasn’t a lot of things before she came along. Now Caleb is finding he’ll be and do whatever he must so that when the clock strikes midnight, Gabriella will forever be all his.