1 I want this
2 this feels like a good episode of the real ghostbusters namely the one about Egon's ancestor
okay big theory,
Egon built something in this town and kept his family away from it one way or an other
Ghosts haven't been a big thing for at least 20 years
the mine is still rich in the metals used in the doomsday apartment building,
the mine was used to open another door and Egon turned it into a planet wide ghost trap,(likely with the total protonic reversal trick) which is now starting to fail