that grow in three directions. He details that beneath the first lives Hel, under the second live frost jötnar, and beneath the third lives mankind. Stanza 32 details that a squirrel named Ratatoskr must run across Yggdrasil and bring "the eagle's word" from above to Níðhöggr below. Stanza 33 describes that four harts named Dáinn, Dvalinn, Duneyrr and Duraþrór consume "the highest boughs" of Yggdrasil. In stanza 34, Odin says that more serpents lie beneath Yggdrasil "than any fool can imagine" and lists them as Góinn and Móinn (possibly meaning Old Norse "land animal"), which he describes as sons of Grafvitnir (Old Norse, possibly "ditch wolf"), Grábakr (Old Norse "Greyback"), Grafvölluðr (Old Norse, possibly "the one digging under the plain" or possibly amended as "the one ruling in the ditch"), Ófnir (Old Norse "the winding one, the twisting one"), and Sváfnir (Old Norse, possibly "the one who puts to sleep = death"), who Odin adds that he thinks will forever gnaw on the tree's branches. In stanza 35, Odin says that Yggdrasil "suffers agony more than men know", as a hart bites it from above, it decays on its sides, and Níðhöggr bites it from beneath. In stanza 44, Odin provides a list of things that are what he refers to as the "noblest" of their kind. Within the list, Odin mentions Yggdrasil first, and states that it is the "noblest of trees". Prose Edda Yggdrasil is mentioned in two books in the Prose Edda; Gylfaginning and Skáldskaparmál. In Gylfaginning, Yggdrasil is introduced in chapter 15. In chapter 15, Gangleri (described as king Gylfi in disguise) asks where is the chief or holiest place of the gods. High replies "It is the ash Yggdrasil. There the gods must hold their courts each day". Gangleri asks what there is to tell about Yggdrasil. Just-As-High says that Yggdrasil is the biggest and best of all trees, that its branches extend out over all of the world and reach out over the sky. Three of the roots of the tree support it, and these three roots also extend extremely far: one "is among the Æsir, the second among the frost jötnar, and the third over Niflheim. The root over Niflheim is gnawed at by the wyrm Níðhöggr, and beneath this root is the spring Hvergelmir. Beneath the root that reaches the frost jötnar is the well Mímisbrunnr, "which has wisdom and intelligence contained