the Master Sword reappeared with each incarnation of Link and its design was changed over time to suit the character's appearance in each era. The Master Sword was introduced in 1991 with the release of The Legend of Zelda: A Link to the Past, which was the third game in The Legend of Zelda series. The storyline involves Link setting out to rescue Princess Zelda by retrieving the blade from its pedestal in the Lost Woods and using it to defeat the main antagonists, the evil wizard Agahnim and finally, Ganon. Several concepts that originated in the game were repeated in subsequent games in the series, including Link drawing the sword from its pedestal and the sword being the only weapon capable of defeating Ganon. The game also gives Link the ability to upgrade the Master Sword firstly into the Tempered Sword and secondly into the Golden Sword to give it a stronger attack power. The Legend of Zelda: A Link to the Past Instruction Manual states that the player's first goal is to claim the Master Sword and explains that before he can wield it, Link must obtain three pendants representing courage, wisdom and power by defeating the masters of three dungeons. Once he has obtained the Master Sword, Link must head to the castle to do battle with Agahnim. However before Link defeats Agahnim, he is sent to the Dark World, a gloomy version of Hyrule. Link must then rescue the seven descendants of the Seven Sages and harness their combined power before he can defeat Ganon. In 1998 the Master Sword reappeared in The Legend of Zelda: Ocarina of Time and was the first iteration of the longsword design in 3D. The sword is again presented as the only weapon that is capable of defeating Ganon and is this time located in the Temple of Time, locked behind the Door of Time. It also acts as a gateway between Hyrule and the Sacred Realm. After Link has collected three Spiritual Stones he is able to open the Door of Time and claim the Master Sword from its pedestal. Due to his youth the sword seals Link in the Temple of Time for seven years until he is ready to be the Hero of Time. When Link journeys around Hyrule to awaken five of the Seven Sages, he can use the Master Sword to travel back in time