Spellsmoke

It's not much of a life, taking bounty hunts on vampires. But as a disgraced former deputy, Lincoln Marshall's not exactly knee-deep in job offers, and airplane tickets are expensive after the apocalypse. His dying father is all the way across the country in Northgate. It's Lincoln's last chance to see him, and he'll do whatever it takes to get there - even though the werewolf pack in Northgate is still out for his blood.
Sophie Keyes, the one and only Historian, needs Lincoln's help. She fears the gods may be out to kill her. So Lincoln drags her back home despite his better instincts - only to learn that home's not exactly safer than Reno. Some preternatural monster is killing hospice patients in Northgate.
Sheriff Noah Adair is convinced the killers are werewolves. The werewolves are convinced Lincoln Marshall is the killer. And Lincoln thought surviving the post-apocalypse had been bad enough before all this crap.