There used to be just the three of us in our family, and that was perfectly fine. Mom and Dad always said that three is the perfect number—so why change anything?

Then Mia arrived, my new baby sister, and suddenly she was getting all of my parents’ attention. If only she were fun… but all she does is cry and lie in her crib. My animal friends keep telling me that every member of the pack deserves love and care, but when I started playing tricks on Mia, they were all very upset with me.

Then one day I went too far, and Mom was really angry… Who would have guessed that Mia would be the one to stand up for me?