They didn't say what happened to the mother, only that the curse wasn't lifted and the Kuro's never saw their mother after that. It's possible that the vampire came back, or maybe even that Cordell's keeping some of what she knows from her brother. I'm also suspicious of that vampire's appearance and his apparent lack of a name. Maybe he's a young Von Helson?
I don't really feel that bad for the elves but in general I also like elves(DnD or Tolkien) more than vampires(Stoker, Rice and Elrod vampires excluded, very much like them). I joined the vampire side on this account because I was curious to experience both sides of the event. I'm looking forward to participating in this... You?