Pina's first trip to summer camp is a chance to escape her overbearing parents and finally go on an adventure with her best friend, Jo. But Camp Clear Skies hides a secret: a clearing in the deep woods the older kids call "the Glade." After falling asleep here, Pina and Jo are able to enter one another's dreams, transforming into superheroes and knights in shining armor, fighting back their nightmares in epic adventures.

At first, the friends think they've discovered a secret more exciting than any video game--until Pina's nightmares start leaking out into waking life. Worse, something seems to have followed them back from those dreams...and whatever it is, it's taking over Jo. Jo has always been the superhero in their friendship, but Pina can't just abandon them to their fate.

To save her friend, Pina journeys deeper into the Glade than she ever has before, facing the worst of her own fears and Jo's. There, she must confront the consciousness trying to steal her friend's body and learn what happened twenty years ago that shut down Camp Clear Skies and changed the Glade forever.