Hi, I'm looking for a story. I only remember bits and pieces.

What I do remember is Bella comes from a long line of witches. I believe she begins a relationship with Jasper after Edward dumps her. Bella's grandmother is still alive but is a vampire now and is friends with Peter, she later hooks up with Edward. Also I remember something about a ruby necklace that holds the spirits of her family members that were killed by Maria. With the help of Jasper, her Grandmother, Peter, and the rest of the Cullen family, Bella kills Maria.

Please help me find this story.