Billy and Hoover are back in the hilarious new series from bestselling authors Henry Winkler and Lin Oliver! It's time for Moorepark Middle School's annual Speak Out Challenge, and Billy Broccoli thinks he's got it made. With his best friend Hoover Porterhouse--the ghost with the most--by his side, Billy's got the competition in the bag. Who wouldn't vote for a demonstration on mind reading? But when Billy lands a spot on the sixth grade team, he starts spending more time with his new teammates than he does with Hoover. And the Hoove plays second fiddle to no one! If Billy's not careful, his secret weapon might just vanish into thin air, leaving Billy to pick up the pieces of a demonstration day disaster!