Can you imagine writing to Father Christmas and actually getting a reply?
For more than twenty years, the children of J.R.R. Tolkien received letters from the North Pole -- from Father Christmas himself! They told wonderful stories of mischief and disaster, adventures and battles: how the reindeer got loose and scattered presents all over the place, how the accident-prone Polar Bear climbed the North Pole and fell through the roof of Father Christmas's house, and many others.