Blood Empire Infiltrated - C. Thomas Lafollette - Bog

Revenge is a dish best served personally.
Luke survived two years in a vampire prison, fighting for his captors' amusement. The only bright spot was meeting Roxi, a fellow captive and powerful vampire hunter. Now they're free, and Luke wants revenge.
But when Roxi disappears, Luke's world is shattered. He adds a new name to his revenge list - the god that abandoned them both. However, His plans for vengeance are already in motion. And he can't set them aside, even for Roxi.
If Luke wants to infiltrate the inner ranks of his enemies, he must stay sharp and not let the specter of his broken heart distract him. He's surrounded by enemies, and there's no room for mistakes. Especially with the dark god of the vampires hunting for him...