When Freddy's mother finally allows him to bring Harold, the class hamster, home for the weekend, Freddy has his hands full making sure that Harold does not escape.

Humphrey the classroom hamster has adventures going to the library, learning about the ocean, and sailing across a pond on a sailboat.

Sam Waters is desperate to have a pet. But his parents say that first, Sam must prove he's responsible. So he takes an after-school job in a pet store called Little Shop of Hamsters. To his horror, Sam soon finds that cute, little hamsters can become very uncute monsters. Suddenly, Sam isn't fighting for a pet--he's fighting to survive!

Photographs and simple text look at hamsters, what they eat, where they live, and how they play. Presented in English and Spanish.

Taking a turn caring for the class pet hamster, Marion is devastated when the hamster goes missing and she receives an anonymous letter in her locker with clues leading to a mysterious scavenger hunt.