That's The Way The Ball Bounces

Miss Erin G. collects all kinds of balls. She has big ones, little ones, and amazing ones that do unexpected things. She likes to throw them, kick them, and strike them with a bat, but she especially loves to bounce them. One day Erin receives a strange package in the mail. Inside is a very peculiar ball...one like she's never seen before. But what will Erin do with such a curious and magical ball?