Irish Adventure — Marcy Kelman

Horror has never been so absurd.
After a bloodcurdling summer at camp, Fred and Anthony are eager to get back to watching horror movies and slacking off at school. But on their first day back, the boys' plans are dashed by some chilling changes at Sunny Babbling Brook Elementary.
Their nicest teachers have been replaced by maniacs, and the cafeteria now serves nothing but organic health food. Then worse, a new kid named Billy Bob Bomzie, son of the infamous Mr. Bomzie, shows up to torment the boys.
Right away Fred and Anthony are framed for a rash of weird accidents at school. Clearly Billy Bob is guilty, but the whole school is suddenly in love with him. Not only that, he's rolling in awards and dough for his hit picture book, which is thirty-two blank pages. How can this be? The boys suspect he is receiving help from some being in the Netherworld in charge of making dreck popular.
Now it's up to Fred and Anthony and their new ally, the Phantom of the Mop Closet, to defeat the dark forces at Sunny Babbling Brook. While they're at it, maybe they can find the supernatural force to make their own dreck popular and rake in some dough