In the historic town of Norvelt, Pennsylvania, twelve-year-old Jack Gantos spends the summer of 1962 grounded for various offenses until he is assigned to help an elderly neighbor with a most unusual chore involving the newly dead, molten wax, twisted promises, Girl Scout cookies, underage driving, lessons from history, typewriting, and countless bloody noses.

Nine-year-old Allie Finkle has rules for everything and is even writing her own rule book, but her world is turned upside-down when she learns that her family is moving across town, which will mean a new house, school, best friend, and plenty of new rules.