Revenge or the cure?

So basically the story is about a half vampire and half human girl who is struggling to keep her anger kept inside from growing up from the death of both her parents. She finds out who the killer is but comes to find out that the killer's son is just like her. Her friend Chris on the other hand is a slayer who would've killed her by now if he hadn't known she could cure them along with the other half'ling. They struggle with battling off a full blooded vampire who doesn't want to be changed into a human and have to fight for survival against his massive army. Chris, Setera, and Blade have to work together to stop the war of humans and vampires before it's too late but they struggle to maintain a friendship between all of them. Half'lings are stronger than most pure blooded vampires so will it help with a slayer and two half'lings who try to control the beast within them? Come find out ~smiley face~