So this is sort of random.. but my DD has mentioned vampires sometimes. I don't even know where she heard of them, I'm assuming on TV somewhere, or maybe it was around halloween (costumes/decorations/etc). She's asked what they are and I don't remember the answer, but she calls certain characters "bad guys" or "villains", so vampires have fallen in that general category..
But when would it be appropriate to explain what exactly a vampire is? I mean if she sees someone in a vampire costume it could be likely to see it with fangs/blood..