Countdown City is a 2013 American soft science fiction mystery novel by Ben H. Winters. It is the sequel to The Last Policeman and follows the exploits of former detective Henry Palace as he investigates the disappearance of Brett Cavatone, the husband of his childhood nanny, Martha. The book is set in a world preparing for the impact of 2011GV1, an asteroid that will wipe out humanity, which will occur in 77 days, within the archipelago of Indonesia. As with The Last Policeman, Countdown City examines the psychological, cultural and metaphysical consequences of the apocalypse.