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

When summer arrives, Humphrey, the pet hamster of Longfellow School's Room 26, is surprised and pleased to learn that he will be going to Camp Happy Hollow.

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.

After the holidays, Humphrey is shocked by a big surprise in Room 26-a new class pet! Humphrey tries to be welcoming, but Og the frog doesn't respond to any of his friendly squeaks or visits (remember, he has a lock-that-doesn't-lock). Plus, the students are so interested in Og, they almost stop paying attention to Humphrey altogether. Humphrey doesn't like the mad-bad-sad feelings he's had since Og came, but luckily he still gets to have adventures...

A boy's hamster leads an increasingly large group of hamsters on a tour of the boy's house, while his father counts down the minutes to bedtime.

When Hamster and his friends go looking for some cool, wet, wild fun at the Water Kingdom waterpark, Hamster and his new friend, Holly, challenge two dogs to a race down the waterslide. Can they win?

"During a creative writing unit at Longfellow School, the students in Mrs. Brisbane's class practice using their imagination with their very own writing journals--and Humphrey finds out that writing from his imagination is harder than it looks"--

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.

"Eleven-year old Sam befriends a hungry class hamster that undergoes a freaky transformation"--

"It's going to be a busy day for Stanley! He gets up early to sort through all of the mail in his post office. Then he sets off through town to deliver it all. Myrtle, Little Woo, and Charlie all receive exciting gifts and letters. But will everyone be happy with what's in Stanley's mail bag?"--