Ancient Sword Shattering - Luke Irontree & The Last Vampire War, #10

To defeat the vampires, Luke must destroy their god. The vampires have taken too much from Luke. He's lost friends and family. Because of them, he's been forced to live an immortal life of brutal conflict. Now he's going to take everything from them. Luke must overcome everything the vampires and their dark god throw at him. Assassins, werewolves, elite vampires, and the money and power of the bloodsuckers are arrayed against him.
He might be a powerful vampire hunter with strong allies, but he's near the breaking point. As losses mount and Portland burns, Luke isn't sure how much more he can lose. But after threatening to destroy a god, he won't be able to back down. The only roads open to Luke are victory or obliteration.