Myrddin, A girl is coming home from a dance and is killed in a car accident at an underpass. On the anniversary of her death, she flags down an unsuspecting young man and asks him to take her home. When they arrive at her home, she has disappeared. That's it in a nutshell but of course there's a lot more detail to it like the young man finds his jacket neatly folded up on her grave the next day. Everyone seems to love this legend/story.