" The other members of the Resourceful Couriers were city people who traveled for a living. Mouth was a born traveler, who tolerated cities for brief periods. In a city, you could only walk in circles. Trouble knew where to find you. People lived with more things than they could carry, and they pretended that built structures were geographical features. Mouth couldn’t travel alone, and the Resourceful Couriers were the closest you could find to a gang of nomads in this age, but the long drags between trips were torture. Especially in Xiosphant, where the residents were obsessed with making sure you slept at the right time, and they didn’t even know how to make decent coffee. "

― Charlie Jane Anders , The City in the Middle of the Night