image of Betty G. Birney

Betty G. Birney

... Unknown

When Humphrey hears that school is ending, he can't believe his ears. What's a classroom hamster to do if there's no more school? It turns out that Mrs. Brisbane has planned something thrilling for Humphrey and Og the frog: they're going to Camp Happy Hollow with Ms. Mac and lots of the kids from Room 26! Camp is full …