“The only world-builder more efficient than Mandel may be God. . . . Exit Party is the kind of novel you’ll be desperate to talk about.” —Ron Charles Los Angeles, 2031: The first spring after the collapse of the United States, peacekeeping troops withdraw from the city, the Jacaranda trees blossom, and the curfew is finally lifted. Ari Waker and her roommate pass the gauntlet of bomb-sniffing dogs, the shanty towns, and the Red Cross tents as they walk across Silverlake to a party.