A hilarious new series from Henry Winkler & Lin Oliver, authors of the bestselling Hank Zipzer books! Billy Broccoli is a boy with questions: about his new school, his new stepfamily...his whole new life, in fact. Hoover Porterhouse is a ghost with all the answers. When a trick of fate makes them roommates, Billy discovers that having a ghost around might not be so bad after all. The Hoover is funny and cool, a great baseball player, and is a real people person (even if Billy is the only one who can see him). And with obnoxious school bullies out to demolish him, Billy can use all of the advice he can get. With Hoover by his side, Billy just might get in style, get even, and conquer the school.