"The Powerpuff Girls" is Cartoon Network's highest-rated show among kids 2-11. It's a mega-hit! And so are Scholastic's books -- last year's Valentine Book hit #9 on the NY Times Kids' Bestsellers.

Mojo Jojo is sick and tired of The Powerpuff Girls foiling all his plans. So he decides to form the Townsville Villain Academy, a school to train bad guys in the art of being evil. Now Professor Mojo Jojo is headmaster-mind of a class that includes Him, Fuzzy Lumpkins, Princess Morbucks, the Gangreen Gang, and Femme Fatale. Can The Powerpuff Girls defeat this all-star criminal conspiracy? Or... will the day be ruined for the very first time, thanks to Mojo Jojo?!