While traveling with her family to Holland to visit her grandparents, Trixie once again loses her beloved Knuffle Bunny.

Nate the Great goes to San Francisco to solve a mystery with his cousin, Olivia Sharp, who is also a detective.

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

Dink and his friends investigate why pets, like Mrs. Davis's canary, Mozart, are mysteriously disappearing all over town.

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

Froggy and his father search the house for the mislaid items they will need on their bike trip.

A tiny minnow wearing a pale blue bowler hat has a thing or two up his fins in this underwater light-on-dark chase scene.

When she cannot find her favorite stuffed toy, a young girl asks her mother, father, and older sister for help.

Jamaica has a problem. She's found a stuffed dog in the park, all dirty and worn from lots of hugging. Instead of taking it to the lost and found department, she's taken it home. Now, as she sits in her room staring at the dog, she's starting to feel bad. Maybe the toy dog belongs to a little girl just like Jamaica. When she decides to do the right thing and take the dog back to the park, she gets a very happy surprise. Jamaica's moral dilemma will...

At Green Lawn Elementary, the entire school becomes involved in a mystery when Mr. Bones, the skeleton in the nurse's office, disappears.