Humphrey book series

I am currently reading the book The World According to Humphrey to the class.  It is about a classroom hamster and is told from the point of view of the hamster.  This is the first book in a series of books about Humphrey.  The books in this series are a DRA level 38-40.   They would be great books to read over the summer!   Here is a link to the book series https://bettybirney.com/humphreyville.html