Chase Cooper was just another scrawny kid at his new school until a group of ninjas recruited him into their clan. It was a world of trouble he wasn't prepared for, which is why he kept a diary to warn other kids about the dangers of becoming a ninja. They say history is destined to repeat itself . . . well, not if Chase can help it. Aligned to Common Core Standards and correlated to state standards. Chapter Books is an imprint of Spotlight, a division of ABDO.