All the great leaders had to start somewhere. And Theresa ("Resa" for short) is starting with the lemonade stand competition her teacher assigned to the class-but making it a success is going to be a lot harder than Resa thinks. The prize: line-skipping tickets to Adventure Central. The competition: Val, Resa's middle school nemesis. And the biggest obstacle to success: Resa's own teammates. Harriet is the class clown, Amelia is the new girl who thinks...