Graves by Laurann Dohner

Graves is a judge, jury and executioner for the Werewolf packs. Not everyone is suited for the job, but a tragedy in his youth changed him into the man he is today, feared by…well…everyone. So when he completes a job for a nearby pack, and the alpha gifts him with a servant, Graves is shocked. No one in their right mind would make him responsible for another person, especially not an alpha’s adopted human daughter. But it’s a gift he literally can’t refuse.
Her father’s alpha position has been challenged, and Brandon, the man who’ll likely soon take over the pack, hates no one more than Joni. She has no choice but to seek protection, and to that end, she and her parents have done their research carefully. While Graves might be terrifying, he’s also a man of honor. He’ll protect her from the new alpha even if it’s the last thing he wants to do.

What begins as a rocky partnership soon turns into something more personal. But Brandon has evil plans for Joni, and he’ll do whatever it takes—including use people close to Graves—to get her back.