Fafnir
Qui, con circospezione, si scavò una tana profonda nella roccia e, recitando arcane formule, si trasformò in un drago che lanciava lingue di fuoco dalle narici e dalle fauci. Da quel momento, accovacciato sulla pelle di lontra, Fafnir non si allontanò mai dal tesoro, tenendo alla larga chiunque osasse passare per quelle terre.
Solo molti anni dopo, il giovane Sigfrido, figlio del re Sigmund e cresciuto con gli insegnamenti di Regin, uccise il drago Fafnir e si impossessò del tesoro, dell’anello e della capacità, comune in tutti i draghi, di comprendere il linguaggio degli animali.
In Norse mythology, Fáfnir (Old Norse and Icelandic) or Frænir was a son of the dwarf king Hreidmar and brother of Regin and Ótr. In theVolsunga saga, Fáfnir was a dwarf gifted with a powerful arm and fearless soul. He guarded his father’s house of glittering gold and flashing gems. He was the strongest and most aggressive of the three brothers.
After Ótr was killed by Loki, Hreidmar received the cursed gold of Andvari’s as repayment for the loss of his son. Fáfnir and Regin then killed their father to get the gold, but Fáfnir decided he wanted it all, turning into a dragon (symbol of greed). Regin then sent his foster-son, Sigurd, to kill the dragon. Sigurd succeeded by digging a pit under the trail Fáfnir used to walk to a stream and plunging his sword Gram into his heart as he walked past. Regin, however, corrupted by the curse on Andvari’s gold, planned to kill Sigurd to take the treasure for himself, but Sigurd, having eaten part of Fáfnir’s cooked heart, was warned by birds of Regin’s attack and ended up killing him. http://en.wikipedia.org/wiki/Fafnir