There’s a Troll under the bridge, a Wedge causing earthquakes, Char that’s burning through town, and they’re all demons on the run. As the mayhem escalates, Lilli, a hippie Demonkeeper arrives on the scene. Her interest is in peaceful demons but something dangerous is stalking the Seattle streets. Can Nat, Sandy and Richie see past their differences to find the Demoneater that is threatening to destroy the panicked demons? Mr. Calamitous seems to know something, but a ravenous Demoneater could end it all. Nat may be in over his head.