Cohabitation

Harper led them through the castle, explaining small details about the rules and customs one had to follow once inside. He was a talkative and friendly guy, so Sunny quickly got the gist of it.

In general, it was very simple. They were free to do whatever they wanted unless it broke the basic rules of cohabitation, with a few small caveats. There were areas in the marble fortress open to everyone, and areas that only members of Gunlaug's host could enter. Those were marked by the symbol of a serpent coiled around a tall tower.

As they walked, Sunny noticed several crude tapestries with that symbol woven on them. The cloth of the tapestries was black, with a stylized white tower and a golden serpent embroidered in their center. He guessed that this represented the Dark City, the Bright Castle, and its lord respectively.