Harriet Hamsterbone is trying to be the perfect princess, but life at the royal palace is dull. When she learns from her parents that she is cursed to prick her finger on a hamster wheel at the age of twelve and fall into a deep slumber, Harriet believes she is invincible until that age and sets off on an adventure with her friend Mumfrey the quail. However, when things go wrong at home, she must find a prince to help her set things right.

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

"It is Princess Harriet Hamsterbone to the rescue when Heady the hydra's egg is stolen, but her search leads her to a castle accessible only by a rat with a very long tail"--

When second-grader Eugene and his family move to a new neighborhood and he starts at a new school, he has a chance to bring out his superhero alter ego, Captain Awesome, to find the kidnapped class hamster.

Humphrey the hamster and the students in Mrs. Brisbane's class get ready for the holidays and a special Winter Wonderland program.

When Humphrey the hamster returns to Mrs. Brisbane's class after the winter break, a new class pet and some other surprises give him an opportunity to reflect on the meaning of friendship.

Humphrey, the pet hamster of Longfellow School's Room 26, learns that his classroom is full of secrets, the most important of which is that a student will be leaving soon.

Katie Carew wishes she could be anyone but herself, and turns into a hamster.

Og the frog is a classroom pet who is living the high-life with children who feed him fat crickets and a fuzzy hamster as his next-door neighbor. But one day, there is discussion about returning Og to the swamp. Not wanting to be bullied by the bull frogs or deal with snakes, Og decides to make himself the best class pet ever.

"Henry is desperate for a little peace and quiet from his extremely chatty roommate Marvin, and after Henry finally loses his cool, these hamsters must find ways to compromise and live together"--