When her best toy mysteriously disappears, Olivia the feisty pig is determined to find out who is responsible.

Nate the Great sets to work on his first international case, he searches for a lost "something," and he saves the King of Sweden from a troublesome traveler.

An expanded version of the work with the same title and author: New York : Harper & Row, 1990. While spending the day in the Robinson household, Wilbur's best friend joins in the search for Grandfather Robinson's missing false teeth and meets one wacky relative after another.

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.

A young dog experiences the fear of being lost and the joys of being found when she becomes separated from her owner.

"This edition is only available for distribution through the school market"--P. [4] of cover.Originally published: New York : Random House, 1997.Junie B. Jones experiences glee while showing off her new furry mittens in kindergarten, but disaster strikes when they disappear from the playground. "Early Chapter Books" collection--look for orange spine label.

After a car accident strands them at opposite ends of the Blue Ridge Parkway, eleven-year-old Abby and her beloved sheltie, Tam, overcome months filled with physical and emotional challenges to find their way back to each other.

When second-grader Eugene's favorite comic book goes missing, he blames his best friend Charlie even though he has no evidence.

When Adele 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.

When Rosamond's birthday gift for Nate disappears from her sled, the boy detective decides to unravel the mystery.