Keeper of Shadows

When you find something worth fighting for giving up is not an option. Kellan Casey gave his heart to a girl, but instead she took his soul and traded it to a Shadow Keeper for her own survival. Now Kellan has everyone fooled, hiding his curse behind a bad boy reputation as he slowly transforms into a dimension-hopping wraith-like soul collector. But when his neighbor, popular girl Abby Marino, accidentally uncovers his secret torment she insists on helping him-even if he doesn't want her to-descending them both deeper into the Shadow Keeper's dark and twisted world. As the fatal end of the curse looms closer, any hope of finding a way out will mean working together.
Except if they fail, Kellan won't just lose his life.  He might lose the one girl he's willing to die for. If you've ever wondered what Dean Winchester would look like as the broody hero in a YA novel, this enemies-to-friends-to-lovers romance is your new favorite read.