All well written Speculative Fiction tales are a part of the fabric of the new mythology. This is true whether the author meant it or not. Every story we see/hear/watch is unconsciously compared to the stories we live by. If the new story aligns with, adds to, alters, or changes that story, it has become a part of an individual's personal mythology. Simply calling something myth or mythos does not make it so. Only when that alchemy occurs and the story is adopted by others does the story become myth.