Tales from Moominvalley is well, a collection of short stories. :D
BUT one of them is about Christmas. “The Fir Tree.” And if I could give more than five stars to this short story, I would. All the stars for “The Fir Tree.” :D
My synopsis: since the Moomins and most of their friends hibernate all winter, they never celebrate Christmas. In fact, they don’t even know what it is. So, when they are jolted awake by a Hemulen* in the middle of winter and told they must get up for Christmas, they are utterly confused. They try to find out what Christmas is, but everyone they ask is cranky and overwhelmed by buying presents, decorating, cooking, etc. So the Moomins decide Christmas is something scary and unpleasant and they must hide from it in a fir tree. Hilarity ensues, with a very touching ending.
P.S. The other stories in this collection are lovely too, but “The Fir Tree” is the absolute best.
*A creature that looks like a hippo, but walks on hind legs.