George MacDonald’s classic fantasy story is a simple one at its center: the enduring struggle between light and dark, the seen and the unseen. The Princess and the Goblin was one of the earliest books of the modern Western fantasy genre, a new blend of fairy tale, folklore, and magic. Tolkien and Lewis both cite MacDon Memoria Press product: https://www.memoriapress.com/curriculum/read-alouds/the-princess-and-the-goblin-second-edition/