The Legend of Sigurd and Gudrún claims that he desires only to avenge his father. The gold and the glory, he adds, are for Sigurd to keep. Twice Regin attempts to forge a sword for Sigurd, only to see the latter effortlessly break them. At last, Sigurd goes to his mother Sigrlinn and requests the broken pieces of Grímnir. Regin takes these and forges the sword Gram. Although Sigurd wishes to slay Fafnir then and there, Regin tells him he must have a horse. In response, Sigurd buys the horse Grani, who was sired by Odin's eight-legged steed Sleipnir, and goes forth to kill Fafnir. Later,
Gná and Hófvarpnir Gná and Hófvarpnir In Norse mythology, Gná is a goddess who runs errands in other worlds for the goddess Frigg and rides the flying, sea-treading horse Hófvarpnir (Old Norse "he who throws his hoofs about", "hoof-thrower" or "hoof kicker"). Gná and Hófvarpnir are attested in the "Prose Edda", written in the 13th century by Snorri Sturluson. Scholarly theories have been proposed about Gná as a "goddess of fullness" and as potentially cognate to Fama from Roman mythology. Hófvarpnir and the eight-legged steed Sleipnir have been cited examples of transcendent horses in Norse mythology. In chapter 35 of the "Prose Edda"