Fafnir (Marvel Comics) entities is stopped when Thor agrees to go to Hel's realm willingly. Fafnir later reappears in the 2011 limited series "Avengers Prime" in the aftermath of the "Siege" storyline as, at first, an adversary then ally of Thor, Tony Stark and Steve Rogers with several legions of ogres and elves in battle against a Twilight Sword wielding Hela and her army. Fafnir was originally a normal man until transformed by the properties of a magical pool into a large dragon. Fafnir retains his intellect and speech, possesses superhuman strength and durability, and the ability to breathe fire and cast illusions.
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,