The dwarf-sword Tirfing
Suaforlami, the second in descent from Odin, was king over Gardarike (Russia). One day he rode a-hunting, and sought long after a hart, but could not find one the whole day. When the sun was setting, he found himself plunged so deep in the forest that he knew not where he was. On his right hand he saw a hill, and before it he saw two dwarfs. He drew his sword against them, and cut off their retreat by getting between them and the rock. They offered him ransom for their lives, and he asked them their names, and they said that one of them was called Dyren and the other Dualin. Then he knew that they were the most ingenious and the most expert of all the dwarfs, and he therefore demanded that they should make for him a sword, the best that they could form. Its hilt was to be of gold, and its belt of the same metal. He moreover commanded that the sword should never miss a blow, should never rust, that it should cut through iron and stone as through a garment, and that it should always be victorious in war and in single combat. On these conditions he granted the dwarfs their lives.
At the time appointed he came, and the dwarfs appearing, they gave him the sword. When Dualin stood at the door, he said—
"This sword shall be the bane of a man every time it is drawn, and with it shall be perpetrated three of the greatest atrocities, and it will also prove thy bane."
Suaforlami, when he heard that, struck at the dwarf, so that the blade of the sword penetrated the solid rock. Thus Suaforlami became possessed of this sword, and he called it Tirfing. He bore it in war and in single combat, and with it he slew the giant Thiasse, whose daughter Fridur he took.
Suaforlami was soon after slain by the Berserker Andgrim, who then became master of the sword. When the twelve sons of Andgrim were to fight with Hialmar and Oddur for Ingaborg, the beautiful daughter of King Inges, Angantyr bore the dangerous Tirfing, but all the brethren were slain in the combat, and were buried with their arms.