One day I went to my Uncle's house for the weekend. On Saturday, I was home by myself while my Uncle went to go grocery shopping. I was really bored so I decided to go upstairs and look around. I found a photo album underneath my Uncle's bed. There was a picture of my Uncle and a little girl near the house next door. So I decided to do some investigating. I was walking to my Uncle's next door neighbor's house. While i was walking, I saw a little girl waving out the window towards me. It was weird because the girl didn't even know me. So I went to their door to see if the little girl wanted to play outside with me since I was waiting for my Uncle to get home. I knocked on the door but no one answered it. I thought that the little girl might of been scared of me. So I knocked again and said that it was the girl she had waved at. Nobody answered the door or my calls. So i walked home and was wondering what was wrong with the girl. I went back home and started hearing people walking upstairs. I called my uncle and he said he was on his way. I asked him about the little girl next door and what i found upstairs. I aksed him where the little girl was and to go get her and have her over. It turns out that the little girl, along with the family have been on vacation for the last week. I still have no idea who the little girl was, but i think that it might have been some kind of spirit of some kind, because of the walking upstairs... I'll never no to this day.