Sometimes life in the Hatcher household makes twelve-year-old Peter think about running away. He is far from overjoyed at the turn the family fortunes are taking. It looks as if Peter will be spending the sixth grade far from Central Park, Sheila Tubman, Jimmy Fargo, and Henry the doorman. (He won't miss Sheila). Then Peter learns that his mother is going to have a baby and Fudge will become the middle child. But Peter can imagine something worse. How will he survive if the new baby is a carbon copy of Fudge?