I lived in South Carolina and it was my best friend`s birthday sleep over.We were watching T.V,and eating snacks and playing games. I got kind of tired of watching T.V. and I was sleepy. I was looking out the window while the other girls were still watching T.V. I remembered some of the ghost stories that they had told each other earlier that evening. They were pretty scary! I kept looking out of the window, then I saw something move in the window! At first I thought it was my imagination, but I told the girls anyway. I figured that they would not believe me. Guess what, they didn't, but my best friend knew that I was not lying. She looked with me again, and she saw it too! The other girls started looking and watching out the window also. They saw it too! We were all really scared. the thing looked like some kind of REALLY big ape or something. We went in the other room and told her mom. Her little sister started crying! we were really scared! Her mom said," I told you girls that you shouldn't of been telling those ghost stories! You are probably just seeing things." But we were convinced, we knew we saw something! When we were going back into her room, we saw a car in her drive way. It was her Aunt and Uncle's car. We soon realized that we knew that it was her cousin playing a trick on us, but he was on a ski trip! Then we thought that it was her uncle, so we asked her aunt and she said that he had gone on the ski trip with her cousin. Then who or what was it? We went back into her room and kept looking out of the window. We saw it a few more times. Then it went around and started throwing rocks at her other window! They were like little pebbles! We tried to get another glimpse of what it was, but it was really dark and we could not see much. Then it went around the house! It started going up the stairs to her front door! Then it started opening the door! We were all running through the house going crazy! We were so scared! Then you will never guess what happened next! It took the mask off! It really was her uncle! He used a ladder! He had this awful mask on! We all started hitting him and asking how he could ever do that to us! We were scared out of our wits! We were all glad it was not real though.