Níðhöggr

Níðhöggr gnaws the world tree from beneath; both Grímnismál and Gylfaginning mention it. At the end of Völuspá it arrives as a dark dragon flying from the Niðafjöll, in Thorpe’s translation bearing a corpse on its wings. The entry says scholars mostly take that as a sign of Ragnarök, while others read it as renewal. The trail keeps both readings in view.