100 word challenge

My friends birthday was a laser tag birthday party my friend invited quite a few people all my friends and his but there was one person I just couldn't recognise I didn't ask my friend who he was because it would be rude. When the party finally started we got put into two teams then we were told the rules and the playing began I just saw the strange boy again but he hid behind a tree when I looked behind the tree he wasn't there but how could he just disappear... I wondered my whole life.