"The Sun King" by Gaston Derreaux is a historical fiction tale written in the mid-20th century. The narrative unfolds in a fantastical version of an ancient world, focusing on themes of divine intervention and the moral decay of civilization, particularly within the context of the city of Oas. It explores the conflict between the worship of an old god, Mazda, and the brutal reign of King So-qi, who embodies the corruption and sinfulness of his people. The story follows Too-che, a virgin who miraculously gives birth to a child prophesied to bring change to the oppressive rule of King So-qi. As So-qi orders her execution, believing her claims of divine conception to be lies, Too-che finds refuge with Chojon, a songmaker who loves her. The narrative evolves as the child, named Zarathustra, begins to reveal his extraordinary nature and foretell a new order. In the end, after a series of tragic events and a massacre of innocent children ordered by So-qi, the king is overthrown, and Asha, a wise philosopher, takes his place. The people come to embrace a new faith centered around worshiping Zarathustra, marking a significant shift from their previous idolatry and cruelty. (This is an automatically generated summary.)