Hi! So, a ski lodge is only written by the person who makes them. (I think.) 

What happens is, one of the Charries that joined is going to be the killer. No one knows this but the person who made the ski lodge. All the other Charries either get killed or die by this mysterious killer, and other people guess who it is. It's purpose? None, really. Just for fun. Hope this helps! And which new person are you!