Vector Vector is the Imperial capital of the Gestahlian Empire in " Final Fantasy VI " , and the location of the Imperial Palace and the Magitek Research Facility . The Returners come to the city after Setzer Gabbiani joins their ranks and provides them with an airship , to save the espers held in the Magitek Research Facility . If the player enters Vector ' s pub , there is a man who recognizes the party as Returners and tells them about the Magitek soldier project . If the party accepts in hearing more gossip , he will tell Kefka was the first experimental Magitek knight who lost his sanity because the process was not perfected at that time . This is the only biographic data the player can find about Kefka . Once the Magitek Research Facility has been destroyed , the entrance to the city is protected by the Guardian , and the player cannot enter . Story . It is not specified if Vector existed as a city before the rise of the Empire , or if it was built at the same time as the Imperial structures surrounding it . The city is polluted and Imperial soldiers patrol the streets . The Returners come to Vector seeking to infiltrate the Magitek Research Facility and save the espers imprisoned within , one of whom is Terra Branford ' s father . The facility is guarded , but a Returner sympathizer helps them . The espers turn into magicite before the Returners can help them , but in taking away Terra ' s father ' s magicite they rouse Terra , who had morphed into an esper , and bring her back to her senses . After Terra opens the Sealed Gate espers emerge and decimate Vector killing many people . Many Narshe guards and Returner members , including Banon and Arvis , can be found in the streets , and merchants still operate . After Kefka acquires more magicite from Thamasa and he and Gestahl raise the Floating Continent , Vector and the Imperial Palace are abandoned . Vector is destroyed in the end of the world , and in its place rises Kefka ' s Tower . Though much of the tower is built of dirt and debris , many areas in Kefka ' s Tower bear Imperial banners or esper capsules , showing that Vector , the Imperial Palace and the Magitek Factory were integrated into the tower . Quests . Entering the Magitek Research facility . If the player comes in contact with any of the patrolling soldiers , they enter a battle and are ejected from the city . It is advised not to stay at the inn in Vector , for it is owned by a thief who may steal 1 , 000 gil from the party during the night . In a house outside the inn is an old woman — if the player refuses to pledge allegiance to the Empire , she will provide free healing in place of the inn once the player defeats two Guards . The entrance to the Imperial Palace lies in the northern part of the city , but if the player attempts to enter they are confronted by the Empire ' s invincible weapon , the Guardian . The Magitek Research Facility is also guarded , but a Returner sympathizer outside the entrance will help the party sneak in . Musical themes . " The Gestahl Empire " theme is Vector ' s background theme . Other appearances . " Final Fantasy Record Keeper " . Vector is the setting for a regular dungeon and is also featured in the Challenge Event s Legendary Plunder , Touched by Magic , and Assassin in Black . Vector . Celes has teleported Kefka and herself away , but the power of her spell started a chain - reaction in the Magitek Factory . The party flees back into Vector with Kefka ' s minions in pursuit .