Secret of Mana, originally released in Japan as Seiken Densetsu 2 (聖剣伝説2?, lit. "Legend of the Sacred Sword 2"), is a 1993 action role-playing game developed and published by Square (now Square Enix) for the SNES. It is the sequel to the 1991 game Seiken Densetsu, released in North America as Final Fantasy Adventure and Europe as Mystic Quest, and its release marked the transition of the Seiken Densetsu series's marketing from a thinly-related spinoff of the Final Fantasy series to the wholly separate Mana series. Set in a fantasy world, the game follows three heroes as they attempt first to restore the legendary Mana Sword, then to prevent the Empire from releasing the Mana Fortress, and finally to prevent the ancient sorcerer Thanatos from destroying the Mana Tree and taking control of the world's magic.