After his parents are kidnapped, timid twelve-year-old Henry York leaves his sheltered Boston life and moves to small-town Kansas, where he and his cousin Henrietta discover and explore hidden doors in his attic room that seem to open onto other worlds.

Ten-year-old Caitlin, who has Asperger's Syndrome, struggles to understand emotions, show empathy, and make friends at school, while at home she seeks closure by working on a project with her father.

Eighth-grade star quarterback Nate Brodie's family is feeling the stress of the troubled economy, and Nate is frantic because his best friend Abby is going blind, so when he gets a chance to win a million dollars if he can complete a pass during the halftime of a New England Patriot's game, he is nearly overwhelmed by the pressure to succeed.

Eleven-year-old Charlotte is not a dog person but does not like that the rest of her family neglects their Saint Bernard puppy, and so with a lot of determination and a little sneakiness, she works on finding a good home for the gentle giant.

Moving to Hillcrest, Ohio, when his adoptive father accepts a temporary job, twelve-year-old Jeremiah, a heart transplant recipient, has sixty days to find a baseball team to coach.

Two eleven-year-old misfits try to solve the mystery of a dead magician and stop the evil Dr. L and Ms. Mauvais, who are searching for the secret of immortality.

After her brother Jared dies, ten-year-old Annie worries about the hidden dangers of everything, from bug bites to bicycle riding, until she is befriended by a new neighbor who is grieving her own loss.

Ten-year-old Zoe Elias, who longs to play the piano but must resign herself to learning the organ, instead, finds that her musicianship has a positive impact on her workaholic mother, her jittery father, and her school social life.

Thirteen-year-old Sunny, accompanied by a stray dog, takes advantage of a windfall to travel from her Nebraska foster home to Enumclaw, Washington, to find the twin sister from whom she was separated at age three.

In a remote area of Alaska, twelve-year-old Willow helps her father with their sled dogs when she is not at school, wishing she were more popular, all the while unaware that the animals surrounding her carry the spirits of dead ancestors and friends who care for her.