The Isle of Polyargos is a fairly remote island, off the western coast of Sapience near the Aalen Forest. The only way to get there is to journey to the Aalen, and then trek south through it until you come to a ferryman on the shore. He will take you to Polyargos, for a fee.
Polyargos is a massive dormant volcano that rises up out of the ocean. Its main inhabitants are a colony of lepers living there to avoid persecution from the mainland, and some extremely ill-tempered harpies. Most fearsome, however, is one of Aetolia's legendary foes: the red dragon Yudhishthira. Yudhishthira lives somewhere in the heart of the volcano and is one of the last things you'll ever want to trifle with, unless you possess the courage of a lion.