When Hank and Drover accidentally hitch a ride into town, their excitement turns into drama when Drover mysteriously disappears, and Hank must find him before their ride returns to the ranch.

Nancy is supposed to be helping Evaline Waters find the document that will keep her from losing her home to a large corporation, but finds it hard to concentrate because she is learning how to fly an airplane.

A little girl gets on a bus with her new red balloon, but when the balloon blows away, her friends and fellow passengers try to help her find it.

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

When Bunny becomes separated from Ray, a magician who is his business partner and friend, he follows a crowd to a park where he has a lovely afternoon, and after the people leave and darkness falls, the lonely and frightened Bunny finds a glittering trail of hope.

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

Participating in an exciting show-and-tell day during which Miss Plum shows the class her sparkly new engagement ring, Flat Stanley is on the case when the ring goes missing.

When the letter B goes missing from the story, the reader must find a way to bring it back into the book for good--

Discovering a smelly creature in her garbage can that she names after herself, Olga befriends and studies the eccentric Olgamus using the scientific method, the practices of Jane Goodall, and other scientific concepts.

Invite young readers to practice counting to twenty while helping a small boy search the city for his pet dragon.