Alas, Babylon by Pat Frank

“Alas, Babylon.” Those fateful words heralded the end. When the unthinkable nightmare of nuclear holocaust ravaged the United States, it was instant death for tens of millions of people; for survivors, it was a nightmare of hunger, sickness, and brutality. Overnight, a thousand years of civilization were stripped away.

But for one small Florida town, miraculously spared against all the odds, the struggle was only just beginning, as the isolated survivors—men and women of all ages and races—found the courage to come together and confront the harrowing darkness.