"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"--
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.
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.