From Number one Bestselling Author David Walliams comes this joyful extravaganza of a book. Brilliantly illustrated by award winning Tony Ross.  At the top of the world, surrounded by snow and ice, lives a very cheeky polar bear cub who loves to go… BOO! But this little bear cub doesn’t always know when to stop… Presenting a mischievous new picture book packed with snow and surprises, from two standout talents! Little ones will adore the illustrations, and anticipating when to go BOO!