Birney, Betty G

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.

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.

Humphrey, pet hamster at Longfellow School, learns that he has an important role to play in helping his classmates and teacher.

Humphrey, pet hamster at Longfellow School, learns that he has an important role to play in helping his classmates and teacher.

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

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.

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

After learning about Sherlock Holmes, Humphrey the classroom hamster follows clues to try to 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 the hamster is excited to return to room 26 on the first day of school, and though he is at first shocked to see an all new group of students, he soon comes to know and love them, and gets understandably nervous when he hears talk of moving him from Mrs. Brisbane's room.

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.