Mayor Prentiss is a fictional character from the book series "The City of Ember" by Jeanne DuPrau. He serves as the mayor of the underground city of Ember, where residents rely on dwindling resources and a failing power supply. His leadership is often questioned due to his lack of transparency and ineffective governance. Throughout the story, Mayor Prentiss is portrayed as self-serving, prioritizing his own interests over the well-being of the citizens. His decisions contribute to the growing challenges faced by the people of Ember, highlighting themes of leadership and responsibility in times of crisis.