Nine is the number of worlds in Norse mythology, if you multiply any number by 9, the digits will always add up to 9 ... and it’s the number of years you need to be before you open this book!Jam-packed with all things nine, including cool stories to read, step-by-step 'how to draw awesome things' pages, jokes, riddles, activities to complete, quizzes, doodles to do and much more, this book is guaranteed to keep 9-year-olds entertained for hours.