Part dinosaur, part robot, all POWER. An electrifying original storybook all about Monster Jam's iconic truck: ThunderROARus! Discover the origin of one of Monster Jam's newest competitors in this action-packed storybook!When two technicians grow tired of seeing their rivals win, they take matters into their own hands. The pair work nonstop to create a new truck to rule the world of Monster Jam. With a little help from a cosmic storm, the legendary ThunderROARus is born! This illustrated storybook is perfect for young kids who love trucks -- especially monster trucks! A perfect holiday gift for Monster Jam fans!