The creepiest place in Barret Eloise's small town is the abandoned Raithfield Manor, a decrepit house surrounded by rumors of ghosts and kids going missing. So she certainly never planned on stepping foot inside. But when her history teacher gives her a group project to research a local landmark, the manor is the location her group chooses. Determined to ace the project and fix her awkward first impression on her assigned partners--which include her former friend Helena, smart and confident Wayne, and school basketball star Ridge--Barret Eloise isn't about to let some tall tales scare her off.

When the kids first enter the house, it seems to be nothing more than an empty building. But when the sun goes down, the doors and windows lock, sealing them inside. Even worse, the room they're in transforms into an all-too-real game of The Floor is Lava. It doesn't take long for the group to realize the mansion is a maze of childhood games. Win the game and you keep moving forward, lose and you disappear. And complicating it all is a worrying revelation--they are not alone in the house.

If Barret Eloise wants to make it home, she and her dysfunctional group are going to have to learn to work together quickly.