Fafnir blood. The earth quaked and the ground nearby shook as Fafnir appeared, blowing poison into his path as he made his way to the stream. Sigurd, undaunted, stabbed Fafnir in the left shoulder as he crawled over the ditch he was lying in and succeeded in mortally wounding the dragon. As the creature lay there dying, he spoke to Sigurd and asked for his name, his parentage and who sent him on such a dangerous mission. Fafnir figured out that his own brother, Regin, plotted this, and predicted that Regin would also cause Sigurd's death. Sigurd told Fafnir that he
Mythology of The X-Files commented that it "went awry during the inscrutable sixth season finale". IGN's Dan Iverson wrote, "I loved the X-Files from the moment I started watching it, due in no small part to the mythology that Chris Carter created. Even though we all loved the 'monster of the week' episodes, these less ostentatious gems kept us interested in what could come in the long run. The overall story arc may have eventually fizzled out, but the questioning, open-ended nature of the stories nevertheless kept us at the edge of our seats." For the first five seasons, critics praised the development in