Blood Feud

Laura Hollis is a college student who decides to help out a mysterious girl named Carmilla she meets at the university library one night, unprepared when she's launched into the middle of a war that's been going on for centuries. The war between vampires and Lycans has looked like there was no end in sight-- until a little stubborn human decides to get involved, and drags one grumpy vampire along for the ride.
Aka the Underworld AU I've been working on for almost as long as the war.