Leigh works herself to death. The Underworld sentences her to Sanitation Specialist, a bronze-badge janitor. No one expected this cleaner to unclog the Bridge of Sighs, revitalize the Soup of Oblivion street, and turn the River of Oblivion banks into a bustling night market. As she rises, she uncovers more to her death, and a person waiting for her holds the deepest secret of the Underworld.