Mist Cave

The Mist Cave is a dungeon that appears in Final Fantasy IV and its sequel, Final Fantasy IV: The After Years. It is a cave shrouded in mist, hence its name, and it leads from Baron to Mist. In Final Fantasy IVs original Super Nintendo version, the location is named Misty Cave, and in the PlayStation version, it is named the Cave of Mist'.

Final Fantasy IV
In Final Fantasy IV, the Mist Cave serves as the first dungeon. Cecil and Kain travel through here on their way to deliver the Carnelian Signet to Mist. As the two travel through the cave, just before crossing the bridge, an ominous voice tells them to go away. At the end of Mist Cave, just as Cecil and Kain are about to exit, the same voice asks them if they wish to go on (the player can answer either yes or no). When Cecil and Kain decide to, the mist in the cave thickens, and the Mist Dragon reveals itself to be the voice talking to them. After defeating the Mist Dragon in a boss fight, Cecil and Kain exit the cave.