The castle fortress of Ringstone is centrally placed in the great bend of the Veng as it runs to meet the Ritensa and it has a unique defense. Running around the entire length of the castle’s exterior walls is a vein of reddish-gold ore which renders the castle impervious to attack by fire. Ringstone’s troops are Uroz from the far north, given new land to patrol, prowl and lord over, so they are happy with their lot. To keep these ferocious orcs happy, the castle’s commander, Trypzenken (NE male half-orc Figher L8), allows them to raid periodically into the Shield Lands without worrying too much about who they raid at those times.
Carl Sargent. Greyhawk Adventures, Iuz the Evil, 1993