Rahnuk is a post apocalyptic fantasy. The story is simultaneously both parable and allegory. The surviving remnant from the 21st Century technological world is now divided into three distinct cultures. Rahnuk, a young mother with her infant son escapes from the female dominated society of Sessilia to find sanctuary in Riparia. The story traces a twenty year period dating from Rahnuk's breathtaking escape, to her new life among the people of Riparia and the attempt by the Sessilites (Bitchfolken) to exact revenge for her defection.