How much trouble can one little monster cause at Christmas time? Ages: 4-8. From the cheeky duo who brought you There Is a Monster Under My Bed Who Farts and The Pirate Who Had To Pee comes a brand-new picture book - perfect for naughty boys this Christmas. The Fart Monster is back and he's tootier than ever! It's Christmas, and Fart Monster is up to his old stinky tricks ... Will the boy get the blame this time? Or will he be able to convince Santa to keep him off the naughty list?