When I was 8 years old I used to accompany my mother to the cemetery to visit my great-grandfather. There I remember talking a lot with a girl who said she was my friend (even my mother got to see him) and on one of those visits she "invited" me to her house but I never accepted, until one day I did and she showed me that it was a grave that she considered "home" so I got very scared and went back to my mother. After that I never saw her again