Kate's humdrum life is transformed when her eccentric Uncle Herbert brings her a colossal locomotive train, the Silver Arrow, as her eleventh birthday gift, leading her and her younger brother on a mysterious quest.

Samantha's uncle mysteriously disappears, leaving behind extravagant gifts for her siblings and an old, rusty, red umbrella for Samantha that may contain clues to his whereabouts.

Told in their separate voices, twelve-year-old twins Percy and Penny are excited to spend a summer riding horses on their Uncle Stretch's Minnesota spread, until they discover it is a pig farm.

Uncle Pig is babysitting his niece and nephews for the first time and he has no idea how to keep them from turning his home into a total wreck--and when he takes them outside the chaos continues.

"Uncle Alex ha llevado a los gemelos en una excursión de acampada en el bosque. Todo va muy bien hasta que descubren que su campamento perfecto ha side arruinado por la vida silvestre."-- Backcover. Tío Alex has taken the twins on a camping trip in the woods. Everything is going great until they discover their perfect campsite has been ruined by wildlife.