Craft a narrative where a revered hero slowly transforms into a villain.
This prompt is sure to add an unexpected twist to your story. Start with a beloved hero who is admired by all and then gradually reveal their descent into villainy, shocking your readers and characters alike. Explore the triggers and temptations that lead to this change and the resultant fallout. This could raise tantalizing questions about the thin line between good and evil and how easily it can be crossed.