They began to come upon from time to time small cairns of rock by the roadside. They were signs in gypsy language, lost patterns. The first he’d seen in some while, common in the north, leading out of the looted and exhausted cities, hopeless messages to loved ones lost and dead. By then all stores of food had given out and murder was everywhere upon the land. The world soon to be largely populated by men who would eat your children in front of your eyes and the cities themselves held by cores of blackened looters who tunneled among the ruins and crawled from the rubble white of tooth and eye carrying charred and anonymous tins of food in nylon nets like shoppers in the commissaries of hell. The soft black talc blew through the streets like squid ink uncoiling along a sea floor and the cold crept down and the dark came early and the scavengers passing down the steep canyons with their torches trod silky holes in the drifted ash that closed behind them silently as eyes. Out on the roads the pilgrims sank down and fell over and died and the bleak and shrouded earth went trundling past the sun and returned again as trackless and as unremarked as the path of any nameless sisterworld in the ancient dark beyond.
Cormac McCarthy: The Road