While traveling with her family to Holland to visit her grandparents, Trixie once again loses her beloved Knuffle Bunny. Contains fold out pages. One track of sound disc has page-turn signals.

A bear almost gives up his search for his missing hat until he remembers something important.

A doughty young Labrador retriever, a roguish bull terrier, and an indomitable Siamese cat set out through the Canadian wilderness to make their way home to the family they love.

Nate the Great and his dog Sludge look for Annie's house key which has mysteriously disappeared.

Dink, Josh, and Ruth Rose get an urgent call from Mrs. Davis. Her canary is gone! And that't not all. Threeother pets have mysteriously disappeared-including Ruth Rose's cat, Tiger..

The reader is asked to help Nate the Great solve the mystery of his friend Annie's missing dog Fang.

When they learn that a famous author is coming to visit Treetopolis, Eva and her classmates are assigned to write stories to share with the author, but Eva is so worried about her missing pet bat that she cannot think of anything to write.

When Harry, the class pet, gets out while at Amelia Bedelia's school break, Amelia and her friends must find him.

When Penelope Rex brings home Walter, the class goldfish, for the weekend, she is not sure how to feel, but when Walter goes missing, Penelope searches high and low for her fishy classmate.

While looking for his lost magnifying glass in the park, young Detective Jeffrey Bones and his grandfather discover that Curly the detective dog is missing, too, and start tracking down clues.