Prologue:
And so Boetius looked upon Hylia with desire and performed great feats to obtain her attentions. He raised a great mountain from the earth, called forth a grand forest, and filled a deep lake in her name. Hylia was pleased and greatly adored these gifts, and yet Boetius still did not possess her. Boetius relented and performed for her his greatest feat. He fashioned from the earth a people in her likeness and breathed life into their bodies. Boetius took great joy in Hylia's delight and stood watch with her for many hundreds of years as the beings of the world below formed a kingdom in her name.
This continued for some time until Boetius discovered that Hylia's heart had been kindled by a mortal man. His pride was heavily wounded that one of his own creations had succeeded where he had failed. In his wrath, he called down heavenly fire upon the young man, but Hylia had anticipated Boetius' jealousy and had placed her protection over the man. The fire rebounded upon Boetius, blackening his skin and causing his fine hair to blaze. A great cry of despair and anger escaped his lips and resounded around the land.
Boetius cursed the land he had built. The great mountain exploded in a sea of fire, the beautiful forest became a labyrinth inhabited by lost souls, and the glittering lake boiled and became dust. He raged war against the people of Hyrule, but Hylia yet protected them such that he could not come close to the city. Enraged, Boetius created yet more living creatures who bowed to him and called him the Demise of Hyrule. These fearsome creations took on many forms and served as his army.
The man whom Hylia loved demanded that she remove her shield of protection from him, that his sacrifice might serve to sate Boetius' rage and Hyrule might be spared. She denied him, and bade him remain safely in Hyrule. As the hour of doom drew nigh, Hylia cut the land upon which Hyrule stood from the earth and raised it to the sky that it might find refuge from the horde of Boetius' monsters.
Hylia then pulled from Boetius the essence of power, and fashioned a shining medallion that would grant the holder's most urgent desire. Yet the medallion was not strong enough to do as she wished, and thus Hylia ripped from herself the essence of wisdom. Still the medallion was not yet whole. Hylia despaired that she would be unable to complete her task, but the man had known of her plan and fled the castle that he might remain and defend her. Hylia wept at his courage and from her tears fashioned a shining blade which she gave to the man. From his courage, she forged the final piece of the medallion, and it shone brightly in her hands as her desire was fulfilled. This last gift would keep her people aloft until the time came for them to return and its great power would serve to protect Hyrule should the need again arise. Hylia placed her blessing upon the man and charged his bloodline with the protection the medallion.
At this, Boetius appeared and demanded the medallion that he might return Hyrule to the earth. The man challenged Boetius, but Hylia took up the sword, bidding the man to escape with the medallion to keep it safe. A great battle ensued as darkness and light clashed together in a duel that lasted three days and three nights. On the dawn of the fourth day, the skies grew calm and the man returned to the site of the battle. There he found Boetius seemingly dead upon the earth, Hylia's blade lodged in his heart. The man used the knowledge that Hylia had blessed him with to craft a great stone seal and lock Boetius deep within the earth. Hylia was nowhere to be found, yet both divine blades had been retained. The man was unable to destroy the black blade of Boetius, and so carefully hid it away in the farthest reaches of the earth. The Goddess's blade he kept with him until such a time that he could construct a great temple in her honor. There he stayed until the end of his days. Of the medallion, no more is known.
Gaepora the Younger
History of Hyrule, Volume One