The butts strike back!This thrilling sequel to the bestselling The Day My Butt Went Psycho boldly goes where no butt has gone before. It's a heart-stopping, nostril-burning intergalactic adventure, and the fate of the earth itself lies in the balance. Can young Zack stop an invasion of Zombie Butts from taking over the planet? Or is Earth doomed to suffer the tyranny of the stinkiest space invaders this side of Uranus?

ANDY GRIFFITHS is a best-selling kids author from Australia. "The Day My Butt Went Psycho!," his first title published in the United States, was an overnight success, appearing on the New York Times bestsellers list within a week of its release. He has garnered rave reviews from kids ad adults alike, and is the winner of several Australian children's book awards. He lives with his wife and two daughters in Melbourne, Australia.