If you had a magic quill pen that made drawings real what would you draw? Jack s mum is taking part in the local Cake-Off Competition and is now battling against the unbeaten champion, Dr Spleen. But something smells burnt . . . Of course Jack and Coco can t keep away from trouble, causing more chaos than they would have ever expected. And yes, this book also features a herd of hairy yaks . . .