The holiday season is the perfect time to cozy up with a good book, and for fans of sci-fi and fantasy, there’s a wealth of festive-themed novels that add magic, mystery, and adventure to the holidays. Here’s a list of the best sci-fi and fantasy Christmas novels to transport you to other worlds while embracing the spirit of the season.   Hogfather by Terry Pratchett Genre: Fantasy, Satire Summary: In this Discworld novel, the Hogfather (Discworld’s version of Santa Claus) has gone missing on the night of Hogswatch, the Discworld’s version of Christmas. Death decides to take over the Hogfather’s