The Cat on the Mat is Flat Author:Andy Griffiths, Terry Denton (Illustrator) Muck! Uck! Yuck! It's just bad luck when the truck of a duck gets stuck in the muck or when a dog on a cog gets chased by a frog around the bog of an angry hog. All of this and so much more! We promise it won't be a snore! These wacky rhymes just don't bore!