Enjoy your show and how you document your findings of spirits in the afterlife. Watched season 14, Episode 14, which I must comment on. Scene in basement was your crew and guest were smelling rotten eggs/ sulphur. What you were smelling was H2S. This is a colorless chalcogen hybride gas with the characteristic foul of rotten eggs. It is poisonous, corrosive and flammable. Prolonged inhalation of H2S can cause serious injury to a person's nervous system.