It was four o’clock in the afternoon, Eastern time, on a Thursday in late February, when the lights went out everywhere. First, the grid collapsed; then, the bombs dropped; then, the virus came and, shortly afterward, starvation.

Abused by her father, young Sarah Travers had only one place where she could escape from the violence at home: school. Sarah graduated college with a dual major in business and economics, but there was something else that Sarah became: the owner of the most elite escort agency in the world.