The youth was certain that many specimens even worse than the worst visible ones were kept locked indoors in some places. People sometimes heard the queerest kind of sounds. The tottering waterfront hovels north of the river were reputedly connected by hidden tunnels, being thus a veritable warren of unseen abnormalities. What kind of foreign blood—if any—these beings had, it was impossible to tell. They sometimes kept certain especially repulsive characters out of sight when government and others from the outside world came to town.