When Riley, Ben and Maisie's hatchling, is stolen by a hypnotizing, mysterious creature, Ben and Maisie gather up other dinosaurs to help defeat the creature, but when they try, they get stolen too! What if the creature has done something horrible to Riley and it cannot be changed? How will they be able to escape and defeat the creature? What if every dinosaur that could help them gets defeated by this mysterious creature?... Read this book to find out!Written by Melani Grace Stone (a 10-year-old)