The Ostin Heir by Michelle Dare

Seventy years ago, Theo Ostin witnessed his family murdering a town of humans. He also watched as stakes were driven into his parents’ chests. Since then, he’s lived on an island no one knows still exists, let alone that he survived.
He prefers it that way.
There’s something about Desolate Beach that calls to Paxton Huxley on a visceral level. He doesn’t understand why, but he gives in and stands on the sand every chance he gets.
One day, a man gives him a note and a pendant before vanishing right in front of his eyes. The catch? Paxton now works for a royal vampire.
But is it really a job when he starts to desire the man he’s helping?
Maybe, just maybe, amid the hell they’re both in, they’ll find something more important. Something they will fight to the death to keep. Love.