This book is part of the advanced Oxford Reading Tree program, designed for fluent readers at Stage 13. The Anti Bully-Machine is a chapter book that addresses a relatable school theme—bullying—but through a humorous, science-fiction lens. The story centers on a young protagonist who decides to invent a bizarre machine designed specifically to stop or counteract the actions of a school bully. The narrative explores the complexities of friendship, conflict, and problem-solving, all while enjoying the comical consequences of the machine's unpredictable operations. The book is aimed at maintaining the engagement of older, proficient readers by providing a compelling, longer narrative with sophisticated vocabulary and a thought-provoking theme.