Your blood, my bones / Kelly Andrew.

"Wyatt Westlock has one plan for the farmhouse she's just inherited--to burn it to the ground. But during her final walkthrough of her childhood home, she makes a shocking discovery in the basement--Peter, the boy she once considered her best friend, strung up in chains and left for dead. Unbeknownst to Wyatt, Peter has suffered hundreds of ritualistic deaths on her family's property. Semi-immortal, Peter never remains dead for long, but he can't really live, either. Not while he's bound to the farm, locked in a cycle of grisly deaths and painful rebirths. There's only one way for him to break free. He needs to end the Westlock line. He needs to kill Wyatt. With Wyatt's parents gone, the spells protecting the property have begun to unravel, and dark, ancient forces gather in the nearby forest. The only way for Wyatt to repair the wards is to work with Peter--the one person who knows how to harness her volatile magic. But how can she trust a boy who's sworn an oath to destroy her?"--Amazon.