Zack Freeman (and his butt) have twice saved the world from total reek-dom. But now the young butt-fighter faces his nastiest challenge yet: Hundreds of thousands of Great White Butts attacking the earth with giant brown blobs are about to cause Buttageddon. In order to stop them, Zack will have to hitch a ride in a time-traveling buttmobile, back to the reign of the prehistoric buttosaurs. Can Zack battle the Tyrannnsore-arses, juggle a giant arseteroid, and put the butts-gone-bad back in their place? Or will the entire world be abutterated?
Andy Griffiths is the New York Times bestselling author of The Day My Butt Went Psycho!, Zombie Butts from Uranus!, Butt Wars!: The Final Conflict, Just Stupid!, Just Wacky!, Just Annoying!, Just Joking!, and Just Disgusting! He lives in Australia with his wife, their kids, and his butt.