Synopsis: New York Times bestselling author Andy Griffiths invites readers to come hang out with him and his friend Terry in their 65-Story Treehouse―the fifth book in the illustrated middle-grade series filled with Andy and Terry's signature slapstick humor!Andy and Terry live in a 65-Story Treehouse. (It used to be 52 stories, but they keep expanding.) It has a pet-grooming salon, a birthday room where it's always your birthday (even when it's not), a…