Welcome to Pleasant Grove, a quiet small town where neighbor helps neighbor and doors are left unlocked at night ‒ an unspoiled paradise with one peculiar feature: It’s enclosed by a glass dome.
No one can leave. No one can enter. No one can survive beyond the dome.
But then, a visitor arrives from the outside. When 12-year-old Agnes Goodwin discovers a strange boy with no memory, she teams up with her best friends to unravel the mystery. Their extraordinary adventure will uncover a long-buried secret so monstrous it will threaten everything they know…and everyone they love.