Fafnir his foster-son Sigurd to kill the dragon. Regin instructed Sigurd to dig a pit in which he could lie in wait under the trail Fáfnir used to get to a stream and there plunge his sword, Gram, into Fafnir's heart as he crawls over the pit to the water. Regin then ran away in fear, leaving Sigurd to the task. As Sigurd dug, Odin appeared in the form of an old man with a long beard, advising the warrior to dig more trenches for the blood of Fafnir to run into, presumably so that Sigurd does not drown in the
Mythology (fiction) Mythology (fiction) Mythology (also referred to as a mythos) is the term often used by fans of a particular book, television, or movie series to describe a fiction franchise's overarching plot and often mysterious backstory. Daniel Peretti argues that mythology "is often used emically to refer to back story". The term was pioneered by the American science fiction series "The X-Files", which first aired in 1993. With this being said, many other forms of media have some sort of mythology, and the term is often applied in regards to "Buffy the Vampire Slayer", "Lost", and the Batman and Superman comics,