This is a chapter from Donald A. Mackenzie's 1912 prose retelling of Norse and Germanic mythology, drawing on Eddic and related sources to reconstruct a continuous mythological narrative. The chapter recounts a "winter war" between the Aesir gods and the Frost-giants, centering on the forging of a supernaturally powerful Sword of Victory by the rebel smith Thjasse-Volund, its seizure by Mimer-Nidhad, and its eventual recovery by the hero Svipdag. Mackenzie weaves together several distinct mythic threads: the peacemaking mission of Njord and Balder's kin, the archery contest that closely parallels the William Tell legend (explicitly flagged as such), and Halfdan's brutal campaign against giants that captures Groa and shames her into an early death. A distinctive move is Mackenzie's euhemerizing synthesis, in which figures like Orvandel-Egil, Thjasse-Volund, and Halfdan-Mannus are treated as facets of a single coherent heroic cycle rather than isolated myths. The chapter ends mid-narrative with Svipdag freed by his dead mother Groa's incantations but wandering lost, setting up his eventual triumph over both Halfdan and Thor. Readers drawn to comparative mythology, Victorian-era mythographic reconstruction, or the Norse sources underlying legends like William Tell will find this a dense but rewarding primary example of the genre.