Simon sincerely believed he was saving Morgan's life when he pushed her off the second-story roof of her family farmhouse. To be fair, his mother was burning it to the ground at the time. But Morgan Mumford, a lonely outcast with a chip on her shoulder and a full skeleton of remarkably unbroken bones, is not particularly convinced of his good intentions.

Because the instant he pushed her over Simon also whisked Morgan into the realm of Hinterland: a shadowy world that is a perfect replica of their home town of Coching. But Hinterland is a hungry and dangerous place, where ordinary objects have taken on a life of their own. In Hinterland you might be ambushed by a gang of motorcycles or eaten alive by a duplex. And by god, you run from scissors.

Morgan is now trapped in this hostile realm, unable to find a way home. Hunted relentlessly by Aqualung, an evil-minded Buick Skylark with a love for Jethro Tull and hatred for all things on two legs, she is forced to join a ragtag band of fellow castaways to ensure her survival. But the embittered leader of these children has plans of his own, and before long Morgan finds herself swept into his vendetta against Hinterland's imperious ruler: Simon's mother, who commands the living, breathing town to do her bidding and schemes to transform it into something worse than it is now. Something ravenous. It's time for Morgan to decide whether to ditch her new allies and find her own way out of the belly of the beast, or stay and help her fellow outcasts weather the violent feud that brews on the horizon.