Mittens the kitten goes for a walk with Nick, but he is distracted by a butterfly and becomes lost.

Paige Darling loves the stuffed rabbit her grandmother has made for her, but when she ties a helium-filled balloon to Bun Bun Button the toy gets loose and goes floating away, and it may take some Darling luck to bring her home.

Junie B. Jones experiences glee while showing off her new furry mittens in kindergarten, but disaster strikes when they disappear from the playground.

Traction Man, an action figure, teams up with the high-tech but not-so-bright Turbodog to rescue Scrubbing Brush, his missing sidekick, from the terrible underworld of the bin.

Principal Wagner confidently deals with a faculty washroom crisis, a psychic parrot, and a terrorizing gerbil, but when sixty-five erasers go missing, he enlists the help of the school's best problem solver and locator of lost items, twelve-year-old Lyle Williams, aka Mudshark.

When Adèle walks her little brother Simon home from school he loses one more thing at every stop: his drawing of a cat at the grocer's shop, his books at the park, his crayons at the art museum, and more.

While trying his best to help a penguin that has shown up at his door, a boy journeys all the way to the South Pole, only to realize that the penguin was never lost.

After Detective Dinosaur and Officer Pterodactyl find a missing baby wearing pink diapers and a home for Cadet Kitty, they lose and rediscover each other.

"When something crucial goes missing, eleven-year-old Olive and her friends must decide how to get it back--put their faith in a strange and dangerous magic, their odd new neighbors, or someone more uncertain and terrifying than both"--

A little boy offers advice to his cat, which is lost in the city, from taking shortcuts through safe alleys to finding a friend in the park.