Good things come in small packages - so the saying goes. This is true about Humphrey. He is a small hamster with a big heart. Life is good for Humphrey - he lives in room 26 in an elementary school. The students adore him, and Ms. Mac, the teacher, brings him home each weekend for loads of adventure and fun. His world comes crashing down when he learns that Ms. Mac is leaving since she is only a substitute, and Mrs. Brisbane, the regular teacher, seems to have it out for him. Luckily, Humphrey has a few tricks up his sleeve, plus a cage that a looks like it is locked, but really isn't. Get ready to see the world from Humphrey's point of view, learn a bit about hamsters and humans!