Concrete Castles. Twelve Cities

The rise of the twelve cities left unpredictable side effects for the planet below. Storms raged, ecosystems transformed, and the environment itself shifted to accommodate change. Petra has never lived with technology. The place she calls home is one of the few scarred by a city's ascension. To her, fire is light, and electricity is little more than myth. She knows the stories of the past, and that they have no power in the present.
But people are disappearing, and the ghosts of the old world seem to be the only logical explanation. The road she chooses to walk will reveal something bigger than the existence of live wires. The legend of the bear is not to be overlooked.