Upon a high throne, carved in crystal sits King Búrin the Conqueror. Conqueror of the petty kingdoms and of the eastern Earls. For he was the mightiest in battle and he hath slain all those before his sight. But alas the southern tribes troubled him to the end of his patience. Upon his brow lay the crown of his kingdom, carved in black and white onyx, a symbol of his unification of the troubled lands. But not the unification of the south.
One day, walking in the woods while contemplating his kingdom, he came upon tree of great girth and height. And under this tree lay a unicorn, a creature of good omen. But no ordinary unicorn was this, for its pelt was black as Búrin's crown with hooves and a horn of diamond. It was the fabled Einhorn. Of all the unicorns placed by Síf upon Miðajord, this one was unique, it was Lord of the Unicorns and Steeds. To view it was an omen of great fortune in battle and in love. And so Króm came down from Guðaheimr to speak to Búrin.
Króm speaks: "Búrin, son of Bálin, Conqueror of the kingdoms, look upon my daughter's creation and reap its omen of good fortunes. Bear the name of this creature and put it and the tree upon a shield and you shall conquer the southern tribes."
Búrin speaks: "I shall become Búrin of the Einhorn, and all those after me shall bear its name and crest."
Króm gives Búrin an amulet bearing the crest of the Einhorn and the tree, a symbol of Stórfyrre. From that day forward he and his descendants would bear the name of Einhorn. The amulet itself serves as a safeguard, for only those with the blood of Búrin may wear it or sit on the throne. Búrin would then ride into battle with the amulet, a shield bearing a tree with two black unicorns and his new name. He slew any foe before him and his army marched upon the southern lands with a great fury, as if blessed by the Einhorn and Króm. But upon facing the southern lord, Búrin met his match in single hand combat. His axe shattered upon the shield of the southern lord and a sword thrust into his chest. He lay dying upon the ground, but alas this would not be his end. The Einhorn, now bound to Búrin charged forth into the field of battle. His diamond horn pierced the shield of the southern lord into his heart. But Búrin still lay slain and near death. The Einhorn knelt down, shedding a single tear for the slain king. The tear entered his wound and healed it, reviving Búrin and saving his life. The single tear still flowed through his veins, ensuring a pure bloodline for an everlasting Norse kingdom.
From that day forward, the Einhorn would roam Búrin's lands, serving as its guardian and symbol of the God's approval of his realm.