A contiguous curse engulfs a family and their allies, trapping them in a web of shared hallucinations.

The Arlands and FBI agents Miles and Bryton must journey from Portland to the Citadel in Quebec, facing monstrous Crannions and their spectral allies. To break free and save their loved ones, they must embark on a perilous journey across the American Northeast, facing ghastly immortals and confronting their own deepest fears.

Can they break the spell's hold on their minds and find the three keys to restore their reality before succumbing to the clutches of illusion?