Gregg Tuskins works for the Smithsonian Institute for the National Museum of America when he discovers this very old artifact from the late 1800s--a very old book with detailed information about some strange and weird doorway inside an old abandoned mine shaft--but the map is so old that they have to figure where the location of this place is. One of the places it mentions about is the Muddy Mountains up in the state of Wyoming nearby Rawlins, Wyoming,...