Jenny, night Jenny

Jenny is a teensy girl how enjoys to ambulate in the night alone. In the blackness of the moonlight of october 31rst, when she was ambulating in the park at 3 a.m. one guy looked up to her and asked:
- Hey! why are you so lonely at this time of the night? Aren't you afraid?
She answered:
- Yes, I was.
- What do you mean with "I was"?
- When I was alive you know...
- Are you kiding me kid?
- No, years ago I dided there. (she was pointing at the swings).
The guy saw them; and when he turned to face her, but she has been already evanesce in the fog that just apeared with Jenny.