Book excerpt: From the bestselling author of the generation-defining series The Baby-sitters Club comes a series for a new generation! Over and OverKaren thinks gymnastics is gigundo fun. She can walk on the balance beam, and do a perfect forward roll. But most of all Karen wants to be on a special gymnastics team. Only the best kids in her class will be picked. There is just one problem. She cannot turn a cartwheel. What will Karen do?