In 1925, fourteen-year-old Ida Bidson secretly takes over as the teacher when the one-room schoolhouse in her remote Colorado area closes unexpectedly.

Afraid he will always be an outsider like ex-planet Pluto, nine-year-old Oliver finally shows his extremely overprotective parents that he is capable of doing great things without their help while his class is studying the solar system.

Twelve-year-old Coco Hidden has grown up in her mother's chocolate shop in Colorado, along with her friend Leo de la Cueva, but recently things have not been going well; the shop is failing, and Leo is hanging out with the other boys, and barely wants to talk to her--but when they both win a culinary contest, the two children and their mothers find themselves on a trip to the Amazon in Ecuador, where Coco hopes to find the rare ceiba tree, and where...