"Countdown City" is a science fiction novel written by Ben H. Winters. It is the second book in the Last Policeman trilogy, which explores a world facing an impending asteroid impact. The story follows Detective Hank Palace as he navigates a society in decline, where people react differently to the looming disaster. In this installment, Palace investigates the disappearance of a friend while grappling with the chaos around him. The narrative delves into themes of morality, human behavior, and the search for meaning in the face of inevitable doom. The book combines elements of mystery and existential reflection.