Jeffrey Baker's got a problem, and his name is Robin Dessart. Robin, the new kid in Jeffrey's class, is a know-it-all and a bully. First, he gives all of Jeffrey's friends a hard time. Then he gives Jeffrey the chicken pox! Jeffrey knows that the only one who can stop Robin Dessart is Max, the third-grade ghost. Max's endless pranks should put Robin in his place once and for all. And Jeffrey's birthday party is coming up—the perfect day for revenge! But, as usual, Max has a few tricks of his own up his sleeve, and Robin isn't the only one in for a surprise. . . .