This island is settled by a tribe of painted barbarians, the Saruntar.
They mine iron and refine it into steel. Blacksmithing is a honored tradition among them and many have such talents. They sell their Masterwork Equipment to people who prove themselves trustworthy.
Once they have forged their first set of masterworks, the Saruntar let themselves be hired as mercenaries by the burghers of Calidyn. Upon their return, they usually set up their own blacksmithing businesses on their home island.
When attacked, the whole tribe assembles and usually drives would be invaders back into the sea. Many raiders use the time it takes for the tribal army to gather to steal masterworks and get out.