Books with author Gahan Wilson

The difference being that this middle school novel is written entirely in Haiku. Loeb, its zombie protagonist has a problem: the object of his affection, Siobhan, is a lifer (i.e. human). What to do? In scenes set around a lunch table (the menu: brains) and around the school, eyes roll and jaws drop (literally). Also featured in the cast of characters is Carl, a chupacabra (bloodsucking critter) and Mrs. Fincher, a sympathetic and seductive librarian.