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.

From her home in Lidice, Czechoslovakia, in 1942, eleven-year-old Milada is taken with other blond, blue-eyed children to a school in Poland to be trained as "proper Germans" for adoption by German families, but all the while she remembers her true name and history.

On her first day at the White House, nine-year-old Liberty exuberantly explores her new home while making new friends and giving unique tours of her own.

After her overprotective grandmother has a stroke, Maya, an orphan, leaves her extremely restricted life in California to stay with her mother's family on a remote Wyoming ranch, where she discovers a love of horses and encounters a wild mare that her mother once rode.

Eve gave up her belief in stories and magic after her mother's death, but a mysterious seed given her as an eleventh-birthday gift by someone she has never met takes her and a boy who claims to be a ghost on a strange journey, to where their supposedly cursed town of Beaumont, New York, flourishes.

Thirteen-year-old Bethany's parents have always been overprotective, but when they suddenly drop out of sight with no explanation, leaving her with an aunt she never knew existed, Bethany uncovers shocking secrets that make her question everything she thought she knew about herself and her family.