Here is an audiobook version in case you would prefer to listen to the story!
Our Eighth book of Christmas is Miss Santa Claus of the Pullman by Annie Fellows Johnston.
We all know that Santa Claus has a large family in which to help him in the delivery of presents, peace, and good cheer. So what would you do if you were Miss Santa Claus and met two children on Christmas Eve traveling to a strange town to be reunited with their father and new stepmother? Why, naturally you would tell them the story of Princess Ina and a powerful charm they could use to turn their feared stepmother into a real mother. Follow the children as they learn to pick starflowers of obedience and kindness to make a mantle of love and become a real family. (Summary by Linette Geisel from Librivox)