The world ended. The Night killed it. X is trapped living in the slums of the last remaining city on Earth. He can only venture out beyond the towering walls to scavenge relics of the old world when the sun is up. At night, like everybody else, he hides inside from the monsters of the shadows . . . until an unexpected death occurs a little too close to home. With the blame on his shoulders, and trigger-happy guards on his trail, X has no choice but to run. But the city was never a safe place to begin with, not really, and his only slim chance of survival lies outside the walls, in a landscape empty of humanity-and full of the darkness that wiped it out.