Books in the Victims series

After the catastrophic world-event known as The Fallout, society regresses into city-states and small groups of organized brigands. Dust covers the world, and a thick haze stretches above skyscrapers, making them seem endless. A group of orphans band together and attempt to survive in the harsh environment the world has become--the aftermath of a world gone cold. They must put their lives at risk to protect the ones they care about, and will resort to any means possible for a chance at their survival.