After celebrating their first nine same-day birthdays together, Amanda and Leo, having fallen out on their tenth and not speaking to each other for the last year, prepare to celebrate their eleventh birthday separately but peculiar things begin to happen as the day of their birthday begins to repeat itself over and over again.

Twelve-year-olds Madeleine, Theo, and Lulu, and thirteen-year-old Garrison, are sent to a remote Massachusetts school to overcome their phobias, but tragedy strikes and the quartet must work together--with no adult assistance--to face their fears.

Considered by many to be mentally retarded, a brilliant, impatient fifth-grader with cerebral palsy discovers a technological device that will allow her to speak for the first time.

When seventh-grader Ellie, who is having best-friend problems, and eighth-grader Jack, who is under tremendous pressure from his father, switch bodies and lives, they learn a great deal about themselves and the opposite sex.

Thirteen-year-old Jamie must spend her summer volunteering at Foxfield Public Library, but quickly grows to love the people there and enthusiastically joins the fight to save the library.--

Duck and Goose learn to work together to take care of a ball, which they think is an egg.

Twelve-year-old Greg, who has always been good at moneymaking projects, is surprised to find himself teaming up with his lifelong rival, Maura, to create a series of comic books to sell at school.

Fearing that her legal guardian plans to abandon her to return to France, ten-year-old aspiring scientist Lucky Trimble determines to run away while also continuing to seek the Higher Power that will bring stability to her life.

During a class trip to the Montana woods, three sixth-graders, athletic Ian, sensitive PJ, and brainy Kendra, are separated from their group and must rely on each other to survive as they encounter zombies and more.

When Miss Tony decides that rivals Liberty and Rochelle will both perform duets with Hayden in the next competition, the two girls develop their first crushes on one of the cutest twelve-year-olds in town.