"A brilliantly funny Christmas picture book from the bestselling author of Oi Frog! Phew! Now that the presents are all delivered, Santa and his elves can enjoy their own festive fun! With crackers and presents, dance-offs and light shows, Santa's Boxing-night party is the North Pole's biggest event of the year! A hilarious follow-up to the bestselling The Night Before the Night Before Christmas. This rhyming picture book is perfect for anyone who has ever wondered what Santa gets up to once all the present are delivered."