Theories
David Didn't Blow Up The Mine

Warning This Section Does Contain Spoilers

Elin Free seems very sure that David Griffith didn't blow up the Strahlenberg Mine, but to believe in her version of events we must first believe in a form of supernatural events. Can something extraordinary take place? Something almost unexplainable? Judy Novak went to see Elin Free at the Blackbird Cabin and they spoke of David Griffith. Elin told Judy that he did not intend to blow up the mine, that he was simply trying to close a "rift" that had opened between her home and here and it was contaminating everything here, but she believes something went terribly wrong and this caused an explosion. She said she doesn't believe David is deceased, that he is merely stuck in the "other side", her "dark home", and she is waiting for the right time to be able to bring him back across.

Elin showed Judy pages and pages of a secret language that David had left behind of symbols that resembled scars on her own body. Elin said if David tried to communicate he would do so using this method of symbols.

Her post script mentions the night dust and that we will know it works when we add it to flame. We are to use the night dust while speaking a chant by candlelight over the sigil (see picture below) on the instructions page from Elin.