Synopsis: Flat Stanley is taking over the world, one city at a time! In this stupendous sixth installment in the renowned Flat Stanley’s Worldwide Adventures chapter book series, the Lambchops look for answers in Africa!When a flat skull is discovered in Africa, Stanley Lambchop decides to travel there with his brother, Arthur, and their father, George. Maybe studying the skull will give them clues to Stanley's flatness. But once in Africa, the Lambchops…