Tarjan is a narcissistic and powerful magic user who is worshiped by many. He is better known as the "Mad God." He is apparently powerful enough to turn a whole city (namely, Skara Brae) into ruins. From a magic mouth within the Sewers: Know this, that a man called Tarjan, thought by many to be insane, had through wizardly powers proclaimed himself a god in Skara Brae a hundred years ago...