Twelve-year-old twins Katie and David Bowen evade foreign militants and make their way from Washington, D.C. to their uncle's Vermont home, hoping he can help rescue their parents, who were kidnapped because of their secret invention, Rover.

A young boy is convinced that his visiting Uncle Bernie is really a bigfoot monster.

Pig Pig is concerned about travelling across the country with his aunt and uncle, but is even more worried when he returns.

Eleven-year-old Ivy Manx sets out with her new friend, a young "taster," to find her missing uncle, an outlawed healer, in the dangerous kingdom of Caux where magic, herbs, and poisons rule.

C.J., who aspires to be as great a jazz musician as his uncle, searches for Uncle Click's hat in preparation for an important photograph and inadvertently gathers some of the greatest musicians of 1950s Harlem to join in on the picture.

When sullen teenager Dylan Barstow is caught joyriding in a stolen car he is sent to his ex-Marine uncle for the summer, but soon they are on the way to Papua New Guinea in search of a World War II fighter plane and Dylan discovers that defiance is not a survival skill when you are lost in a jungle.

An eleven-year-old, bored with her life, imagines a more exciting one as a secret agent, but when she spends the summer on her aunt's farm, her stories become reality as she stumbles onto a real spy ring.