Hattie Swift is a maid-in-training at Majestica, a resort and nature preserve where visitors come face-to-face with rare magical flora and fauna. She's thrilled to be invited along on the park's famous wilderness train excursion for the first time, but there's a catch: She has to accompany Evelyn Ridgewell, the hotel owner's haughty niece, who wants nothing to do with her. Soon after embarking, Evelyn overhears a man who aims to hunt the park's creatures for sport, and Hattie meets Jacob Threadborne, an apprentice magician sent by a foreign government on a top-secret mission. Then the magical fences keeping guests safe stop working, and the train breaks down in the most treacherous part of the jungle. Faced with poachers, man-eating trees, and a dragon on the loose, Hattie, Evelyn, and Jacob must stick together to figure out what's gone wrong at Majestica... that is, if they want to make it out alive.