Best friends Pearl and Wagner return in a third book full of April Fools” Day jokes and misadventures! It is April Fools” Day, and all the jokes seem to be on Wagner. His teacher collects homework she didn”t assign; the lunch lady serves up bug juice; and even the school librarian has a trick up her sleeve. But when Pearl won”t dance with Wagner in the class dance competition, she”s not joking around. Wag has the perfect plan to get the last laugh, though — with a mysterious (and very contagious) case of green bug pox!