Werewolves.
My deal with vampires is they were killing people. So we killed them back. It's a whole ancient blood feud thing my ancestors started, if you believe the stories. And my pack and me, we didn't start turning into wolves until the vampires showed up. They triggered the change. The ones here smell different than the ones back home but it still makes my skin crawl. I've barely been keeping it under control since I showed up.