Paperback | JUVENILE FICTION/Readers / Beginner Join Mercer Mayer’s classic and loveable character, Little Critter®, as he learns that the teacher’s pet can also be a great teammate in this I Can Read story! Little Critter and his classmates have had enough of the bossy teacher’s pet. But when she plays in the big baseball game, everyone discovers that school is about more than fun and learning—it’s also about friendship!