I never really post these or even pay attention to these kind of stories that come up, but apparently sometimes they work and it has been bugging me to find this story.
Bella's mother was murdered (and she witnessed it, I believe it was by a vampire, phil I think) and people think she murdered her own mom. She went to Forks and met the Cullens and they are vampires. It's kind of an AU Twilight, but it was one of my favorite fics and it'd be so nice to read it again. I am pretty sure it was sort of popular.
