A round austere room centered by a turnstile and a podium. Beyond the turnstile automated doors lead to the north and west. Twelve Sisters of the Sun are here to guard the gate and verify travellers’ citizenship. They deny access to anyone not from their home world, politely at first. If they are pressed they will respond with nonlethal violence and take captured aggressors to the cave-ins in 7.6 to be exiled. Those who have committed worse crimes will be imprisoned in the manse of the high solar until given a trial and punished. The east wall here is a recent construction and can be torn down with ten hours of labour for one person.