"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"--
Mr. Fish recalls how, on his very first day of school, he anxiously went to one classroom after another watching students do things he could not, until Miss Hewitt showed him to the room that was right for beginners.
Humphrey the hamster is puzzled when unfamiliar students fill Mrs. Brisbane's classroom at summer's end, but he soon learns that his friends from last year are fine and that the new class needs his special help.
After planting the garden he has dreamed of for years, Mr. McGreely tries to find a way to keep some persistent bunnies from eating all his vegetables.
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.
Rod is surprised when a miniature spaceship lands in his school science project and reveals five tiny aliens, who ask his help in apprehending an interstellar criminal.
Having worked all summer at keeping bunnies out of his garden, Mr. McGreely looks forward to a peaceful winter--if only he can keep those naughty bunnies from invading his home.