The summoning

So, right now Kaitlyn and I are pretty much running for our lives. If you didn't know Kaitlyn is my best friend. We both got invited to the slumber party that night. There we were just normal kids standing at the door of the creepiest house we had ever seen. We weren't sure if we should knock or go back on our plans to go to this party. The door suddenly opened. I backed away, suprised. I didn't want to go in but Kaitlyn convinced me it would be fun. I slowly walked in, not knowing only hours later I would be on the verge of being killed by a mentally insane demon...