The Grisly Valley horror-themed amusement park has been deserted since the nearby nuclear meltdown made it a contamination zone. But Rosie Sinclair is headed to Grisly anyway, following an elusive trail to rescue her kidnapped family. As she crosses the country, she dreads that Dean Berg is holding her family hostage and once again manipulating her every move to increase her fear, priming her for a final, lethal dream-mining procedure.

As she struggles to outmaneuver Berg, Rosie can’t ignore the growing restlessness in the back of her own mind. The turmoil she feels is more than worry over Burnham’s unnerving generosity, the camera in Linus’s eye, or Thea’s fragile health. Faced with unspeakable suffering and otherworldly beauty, Rosie must discover how to trust her mind, her friends, and reality itself.