Through a misunderstanding, Junie B. thinks that her new baby brother is really a baby monkey, and her report of this news creates excitement and trouble in her kindergarten class.
While dealing with changes at home, sixth-grader Josh and his friend Aaron use the computer at their New York prep school to travel through time, learning some secrets from the school's past and improving Josh's home situation.
During a summer in an abandoned mining town, Katie's relationship with a rebellious stepbrother improves as they probe the past to find out why there seem to be ghosts, literally, beneath their feet.
The Alden children investigate various mix-ups at a zoo run by their grandfather's friend in an effort to save it not only from pranksters but also from the town council.
While her father is away fighting in World War II, Molly finds her life full of change as she eats terrible vegetables from the victory garden and plans revenge on her brother for ruining her Halloween.
When an earthquake hits the isolated island in northern California where his family had been camping, twelve-year-old Jonathan Palmer must find a way to keep himself, his partially paralyzed younger sister, and their dog alive until help arrives.