The fourth book about Rosy Cole, irrepressible young New Yorker, concerns her search for a Life Long Ambition. Compared to her best friend, Hermione (who definitely knows where she's going), Rosy feels she lacks direction--till a Young Author's Program at school suggests to her that her talent for getting at the truth makes her ideal investigative-reporter material. She duly investigates headmistress Dr. Gormley, with predictably inaccurate results--a potential journalistic disaster that is arrested by her decision to include not only her wild suppositions but the boring facts on which they are based. To her chagrin, she is honored on Young Author's Day for her use of imagination--hardly a goal for a future Woodward/Bernstein. But nothing keeps Rosy down; at the end, she's planning future literary ventures. Rosy tells her story in an entertaining, deadpan style, with Greenwald's lively line drawings (on almost every page) and their captions used as an integral component of the text. Only moderately funny, this weakest entry in the series is predictable, the satire becoming rather precious. Still, it will satisfy Rosy's many fans.