Who would believe it? Santa and Red Pants Boy are sitting together for tea. But as well as festive cheer, Santa brings a problem: his bum is ill-fitting from all of the sitting! Can our hero and his family help Santa get his bum back in shape in time for Christmas present deliveries?

This festive and funny tale will spread Christmas joy to all the kids, parents and grandparents who can't get enough of the New Bum! shenanigans. Dawn McMillan's playful rhymes and Ross Kinnaird's vibrant drawings bring an exciting holiday adventure to New Bum fans around the world, continuing the success of this globally bestselling series.