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.

After receiving an invitation to spend the summer with their estranged grandmother, the Story cousins arrive at her house only to discover that she is not there, and the longer they stay on the island, the more they realize their mysterious family history has some deadly secrets.

Otto and Sheed, The Legendary Alston Boys of Logan County, are ordered by Missus Nedraw to bring a fugitive to justice in a world that mirrors their own but has its own rules.

When Ted and Kat's cousin Salim disappears from the London Eye ferris wheel, the two siblings must work together--Ted with his brain that is "wired differently" and impatient Kat--to try to solve the mystery of what happened to Salim.

Maisy packs her bags and sets off on a fun vacation to the seashore with Panda and Cyril.

Even though Lila's cousins do some things differently, Lila loves when they come to visit.

Maisy and Charley visit their friend Dotty, who lives in a big city filled with noisy traffic, enormous buildings, and crowded sidewalks.

An ancient castle, a tragic love, and a web of secrets.... When her fascinating but unreliable cousin Harry invites her on a holiday to explore the legendary town of Chinon, France, and promptly disappears, Emily begins to uncover dark secrets beneath the charm. As the dangers of the past become disastrously real, she is drawn ever more deeply into a labyrinth of mystery as twisted as the streets and tunnels of the ancient town itself.

After watching a soccer game, Kylie Jean is eager to try out for a local team, but she is disappointed that her cousin Lucy does not want to join her.

Living with her aunt's family in Mansfield, Massachusetts, for a few months before turning eighteen and starting college, Edie is torn between Sebastian, the boy next door, and playboy Henry.-- Mansfield, Massachusetts, is the last place seventeen-year-old Edie Price wants to spend her final summer before college. It's the home of wealthy suburban mothers and prima donnas like Edie's cousins, who are determined to distract her from her mother's death...