This happened about 3 years ago. It was the weekend and I had driven over to my friend Al's house to hang out for a bit. We lived pretty close to each other, and were at each other's houses often. Al told me that he was going to have some relatives that were going to be staying for a day or two, and that sometimes their kids would want to play in the room that was next to us (therefore we would have to be careful not to get high around them).
It wasn't a big deal though, because they all had to go to bed early so it would only be for a little bit before we could go back to just being ourselves.
Anyways, towards the end of the night, I was getting ready to leave his place and decided to walk upstairs to use the bathroom, since there was no bathroom in his basement. Well, in order to go upstairs, you have to walk by this closet area with a furnace and this dark hallway with a study right by the stairway. I always felt a little paranoid every time I walked by this area for some reason. Well, my friend did hide in the furnace one time and tried to scare me as I walked by, but the entire hallway was just kind of creepy.
Well, I went to the bathroom, did my thing, and as I was walked back down to the basement to get my stuff, I passed by a young girl with long, curly brown hair and a white dress. I didn't think anything of it, and just gave her a little smile and hurried downstairs. I figured she was just one of the kids that was here earlier (there was about 6 and I went straight into my friend's room when I got there).
The next day, I called my friend up and we were chatting when I suddenly remember the girl I saw. I made a joke about how I saw a girl in the basement in the middle of the night, and that she probably just wanted to come downstairs to smoke with us. My friend was like "What girl?" I was like "Umm, didn't you have relatives and their kids over?" He told me that they had all left, except for his uncle, who doesn't have any children. And he told me none of the kids there fit the description of the girl I saw.
I thought he was just joking with me, but he said sometimes he will see his nephew's (who lives with him) toys by the stairs, or if he cleaned up the room already, all the toys would be taken out of the toy box and spread out on the ground. I guess the girl liked to play with his nephew's toys.
I thought it was sort of cool and creepy at the same time, but this increases my paranoia even more when I am in his house and especially when I am trying to go upstairs. Now I just try to hold my pee as long as I can until I leave his place.