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?