Superfudge

Peter Hatcher, a 12-year-old boy, learns that his mother is going to have a baby and that the whole family will be moving to Princeton for a year. He's worried about starting sixth grade in a strange place and going to the same school as his younger brother, Fudge. But Peter is much more concerned about this new baby turning out to be just as big a nuisance as Fudge is now.