La Ville Souterraine

La Ville Souterraine is a vast underground network of cities beneath most of the Frozen Wastes. It is and always has been ruled by Frost King Old Nicholas. In his absence each winter, it is ruled by his wife and Queen-consort Gert Clappertongue. The network has air conditioning and heating, and is nearly as technologically advanced as Atlantis. Beneath the frozen wastes are apartments, homes, museums, theatres, shops, transport terminals and a secondary Transmat Station that connects with Atlantis' own.