Blood trade
(Book)

"The Master of Natchez, Mississippi, has a nasty problem on his hands. Rogue vampires, those who follow the Naturaleza and believe humans are nothing more than prey to be hunted, are terrorizing his city. Luckily, he knows the perfect skinwalker to call in to take back the streets. But what he doesn't tell Jane is that there's something different about these vamps. Something which makes them harder to kill, even for a pro like Jane. Now her simple job has turned into a fight to stay alive." --back cover