Letters from Father Christmas (HarperCollins, 1999)

Every December an envelope bearing a stamp from the North Pole would arrive for J.R.R.Tolkien's children. Inside would be a letter in strange spidery handwriting and a beautiful coloured drawing or some sketches.

The letters were from Father Christmas.

They told wonderful tales of life at the North Pole: how all 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 into the dining-room; how he broke the Moon into four pieces and made the Man in it fall into the back garden; how there were wars with the troublesome horde of goblins who lived in the caves beneath the house!

Sometimes the Polar Bear would scrawl a note, and sometimes Ilbereth the Elf would write in his elegant flowing script, adding yet more life and humour to the stories.