Betty G Birney

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.

Eben McAllister searches his small town to see if he can find anything comparable to the real Seven Wonders of the World.

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.

Tyrannosaurus Tex, a dinosaur cowboy, helps Cookie and Pete put out a prairie fire and scare away some cattle rustlers.

Humphrey, the pet hamster of Longfellow School's Room 26, relates the ups and downs experienced by his human classmates as they begin a project to create a model town complete with houses and community services.

While continuing to help his classmates solve their problems, Humphrey, pet hamster of Longfellow School's Room 26, faces many surprises, like rolling in a hamster ball, a substitute janitor who might be an alien, and the possibility of Mrs. Brisbane retiring.

After learning about Sherlock Holmes, Humphrey the classroom hamster follows clues to try and discover why Mrs. Brisbane is gone and Mr. E, a fun but not very educational substitute, is taking her place in Room 26 at Longfellow School.

"Humphrey helps the students of Room 26 find a missing dog"--

Humphrey, the pet hamster of Longfelow 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.

When the school fair features a best class spirit contest, the students of Mrs. Brisbane's class prepare a tribute to Humphrey and Og, who are disappointed when hot weather threatens to prevent the class pets from attending.