Nalbina Dungeons The Nalbina Dungeons is an unrevisitable location in the land of Ivalice in " Final Fantasy XII " . It is a large portion of the fortress that dominates the city of Nalbina . Location . Nalbina Dungeons are the lower portion of the Nalbina Fortress , which has been sealed off and turned into a prison . The is a chamber deep beneath the dungeons and is where Captain Basch is kept imprisoned . The mechanism of the prison is rather unique as each prisoner is placed in cages hanging from certain chambers . In an interrogation , one can simply pull a level and choose which cage to bring forward for the interrogation process . Further down the Oubliette is the cavern leading to the abandoned Barheim Passage . Treasures . Nalbina Dungeons contains a forbidden chest ( labeled in red ) that , if claimed , prevents the player from obtaining the Zodiac Spear ( the most powerful weapon ) in the Necrohol of Nabudis . The southernmost chest in the Confiscatory where the party reclaim their lost equipment , the treasure that always contains gil , is forbidden . The other two treasures that contain a gambit for self - targeting and a Tourmaline Ring are not forbidden . The player can save their game outside to make sure they can reset if they take the wrong treasure by accident . The concept of forbidden chests was removed in the " Zodiac Job System " version . All the treasures in the Stockade are Knots of Rust . The treasure nearest to the Confiscatory in the Black Watch area can have Chromed Leathers . The northernmost treasure in the same area can have a gambit for ally : HP < 60 % . The treasure nearest to the exit ( where the party follows Judge Gabranth ) can have Foe : targeting ally gambit . Mostly the treasures are all Knots of Rust unless they are gil , but there are also a few Motes and an Ether that may pop time to time . Confiscatory . All chests in this location do not respawn . The Black Watch . All chests in this location do not respawn . Story . Vaan and his new comrades , Balthier and Fran , must escape the dungeons after being locked in upon being discovered trespassing in the Royal Palace of Rabanastre . Fran , being a viera , senses a way out , but the way deeper into the fortress is blocked off . A Judge enters the dungeons and the group decides to follow him . They follow the Judge to the bottom of the dungeons where Basch is kept locked in a private cage . The Judge confronts Basch , then leaves . Basch ' s cage hangs above a " bottomless pit " , which is the way out Fran could sense . They cut Basch ' s cage loose from the ceiling causing the tunnel to collapse on itself and the group to fall through the pit to the Barheim Passage . Following their escape from the dungeon into Barheim Passage , the Nalbina Dungeons can no longer be accessed . The manga version expands on the events . When Vaan intervenes on a seeq prisoner attacking a former Dalmascan soldier , the Goddess ' s Magicite falls from Vaan ' s pocket and the seeq seizes it . Balthier tells Vaan he will teach him why he lost and challenges him to a game where Balthier will throw a coin into the air , catch it , and Vaan must decide which hand it is in . Vaan fails , and Fran reveals she has the coin and Balthier ' s hands are empty . Meanwhile , Gabranth authorizes Ba ' Gamnan to search the prisoners for Balthier . Fran reveals she has found the exit and used her magic to forge a duplicate key to the bindings that guard it . Balthier decides to make their move in two hours after investigating the resistance , and Vaan declares to have recovered the stone when he returns . He finds the seeq who stole it but is ambushed by two more . Vaan is thrown into a cell until the seeq , Daguza , is ready to face him in the arena . Ba ' Gamnan offers to free him , but Daguza intervenes and the two fight , and Vaan escapes and charges Daguza . In a flashback , Balthier explains to Vaan he won the coin flip using the magic spells Decoy and Vanish to distract Vaan , toss a fake coin while throwing the invisible real coin to Fran , and Vaan lost because he was too naive and didn ' t watch his surroundings . Vaan ignores Balthier ' s lesson and surprises Daguza with a frontal attack seizing the Goddess ' s Magicite , and flees to meet up with Balthier . In the deepest layers of the prison Gabranth speaks to Basch , asking how he is kept alive and if he knows anything about the prisoner " Amalia " Emperor Gramis and Vayne are secretly transporting , suspecting information is being kept from him . When Gabranth leaves Balthier , Vaan and Fran investigate the pit below for an escape route , and when Vaan causes a clamor , the trio is drops Basch ' s cage into the pit to escape . Other appearances . " Final Fantasy Record Keeper " . Vaan awakens in the Nalbina Dungeons , where he intervenes to stop the jailor Daguza and his lackeys from abusing a bangaa prisoner . Musical themes . The track that plays in the Nalbina Dungeons is " Nalbina Fortress Underground Prison " . The track that plays when Vaan is forced to battle the seeq dungeon masters is called " The Barbarians " .