The Kirinal Concordance Zone was created around the Kirinal Pit to act as a buffer zone to defend against interplanar invasions. The Pit is a 30-mile hole in reality that chaotically manifests a different world or plane at random times.
Eventually, the people of Erathia tamed the Pit, setting it on a schedule so that an ordered succession of planes would appear over the Days of the Week.
Created to guard the Kirinal Pit. Now a hub of interplanar trade and magitech industry.
