Surprises According to Humphrey
by Betty G. Birney

Have you ever had a classroom pet? Room 26 at Longfellow School does! His name is Humphrey and he is a golden hamster. Humphrey loves to work math problems, add new words to his dictionary, and go on adventures when no one is watching! He is also very good at helping his classmates solve problems - so good, in fact, that they never even know he is responsible for the solution! He helps several students when they have problems with their friends or following Mrs. Brisbane's directions, but what will he do when Aldo is abducted by aliens? How will he help Mrs. Brisbane make the most important decision of her career?

This book is the fourth in the series. It is a nominee for the 2009-2010 Texas Bluebonnet Award.