 After retrieving the Sword of Kings , which can destroy nethicite , the party journeys to Archadia to retrieve Larsa , who has been taken . There they discover Doctor Cid , who created manufacted magicite , and who directs them to go to Giruvegan as it is the source of nethicite . In Giruvegan , only Ashe can enter the final area , where she encounters the makers of nethicite , the immortal Occuria , who " pull the strings of history " ; they give her the Treaty Blade to cut new pieces of nethicite from the Sun @-@ cryst , the source of all nethicite and its power . She learns that one of the Occuria has defected to put the " reins of History back in the hands of Man " , and led Cid to create manufacted magicite to reduce the relative power of the Occuria . Archadia 's expansion campaign was a front to capture the existing shards of nethicite . 
