Sleipnir When the Æsir realize that the builder is a hrimthurs, they disregard their previous oaths with the builder, and call for Thor. Thor arrives, and kills the builder by smashing the builder's skull into shards with the hammer Mjöllnir. However, Loki had "such dealings" with Svaðilfari that "somewhat later" Loki gave birth to a grey foal with eight legs; the horse Sleipnir, "the best horse among gods and men." In chapter 49, High describes the death of the god Baldr. Hermóðr agrees to ride to Hel to offer a ransom for Baldr's return, and so "then Odin's horse Sleipnir was
White horse (mythology) As part of its legendary dimension, the white horse in myth may be depicted with seven heads (Uchaishravas) or eight feet (Sleipnir), sometimes in groups or singly. There are also white horses which are divinatory, who prophesy or warn of danger. As a rare or distinguished symbol, a white horse typically bears the hero- or god-figure in ceremonial roles or in triumph over negative forces. Herodotus reported that white horses were held as sacred animals in the Achaemenid court of Xerxes the Great (ruled 486–465 BC), while in other traditions the reverse happens when it was sacrificed to the gods.