"To Humphrey and the students at Longfellow School, spring seems impossibly late this year. Fortunately, planning a school Family Fun Night keeps the students (and classroom pets) busy as they look for signs of the changing seasons"--

Sam's favorite thing about second grade is the class pet, a hamster named George Washington, so when the class goes on a field trip to a science museum, Sam cannot resist bringing George along.

Climbing to the top of a towering beanstalk that has grown from a magic bean, Harriet Hamsterbone finds a castle inhabited by a giant who is holding two unusual prisoners.

When Pecos Bill's daughter gets two pet hamsters, they soon multiply into the hundreds, so Bill decides to take them all to Chicago where lots of boys and girls want pet hamsters.

"Humphrey is spending the weekend at Garth's house when the prize for his scavenger hunt is stolen from its hiding place in Humphrey's cage."--

"The students of Room 26 are so excited for Longfellow School's big school fair! Pet hamster Humphrey is too--but will he be allowed to march in the parade with his classmates?"--

During their trail ride on all-terrain vehicles, Hot Rod Hamster and his friends stop to help Grandpa Dog and two puppies, whose vehicle has tipped over and gotten stuck in the mud.

"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"--

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.

"The students in Room 26 are throwing a birthday party, and Humphrey is surprised when he finds out who it's for!"--