Here is a book that will keep you guessing again and again and...
About the Author
Mac Barnett is the author of several picture books, including Billy Twitters and His Blue Whale Problem, Guess Again!, and Oh No!: Or How My Science Project Destroyed the World. He also writes the Brixton Brothers series of mysteries. Mac is the founder of the Echo Park Time Travel Mart, a convenience store for time travelers, and serves on the board of 826LA, a nonprofit writing and tutoring center.
Adam Rex is the author of many books, including Cold Cereal and Unlucky Charms, the first two books in the Cold Cereal Saga; the New York Times bestselling picture book Frankenstein Makes a Sandwich; the middle grade novel The True Meaning of Smekday (now a major motion picture from Dreamworks, Home); and the teen novel Fat Vampire. He currently lives in Arizona with his wife.