Later in the book, Húsdrápa, a poem by 10th century skald Úlfr Uggason, is cited, during which Heimdallr is described as having ridden to Baldr's funeral pyre.
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Heimdallr is a character in Eoin Colfer's And Another Thing..., the sixth book of Douglas Adam's series The Hitchhiker's Guide to the Galaxy.
Regarding this stanza, scholar Andy Orchard comments that the name Gjallarhorn may here mean "horn of the river Gjöll" as "Gjöll is the name of one of the rivers of the Underworld, whence much wisdom is held to derive", but notes that in the poem Grímnismál, Heimdallr is said to drink fine mead in his heavenly home Himinbjörg.
In the chapter, the enthroned figure of High tells the disguised mythical king Gangleri about the god Heimdallr, including that he is the son of nine sisters.
Some scholars have linked the Nine Mothers of Heimdallr with the Nine Daughters of Ægir (whose parentage and names combined imply waves), an identification that would mean that Heimdallr was thus born from the waves of the sea.