"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"--
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.
"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"--