But We Were Only Joking! Mrs. Cheevy, the new math teacher at Graveyard School, is totally paranoid! She's always looking over her shoulder, her voice continually quavers during math lessons, and she jumps when anyone asks a question. This makes her the perfect target for class clown Bentley Jeste, and soon all the kids get in on the act. Math has never been more hilarious, until one day a practical joker goes too far. Could Mrs. Cheevy's second-period class have scared her to death? You'll be dying to go to class at Graveyard School #1 Don't Eat the Mystery Meat! #2 The Skeleton on the Skateboard #3 The Headless Bicycle Rider #4 Little Pet Werewolf #5 Revenge of the Dinosaurs #6 Camp Dracula #7 Slime Lake #8 Let's Scare the Teacher to Death!