A seance is a session where a group of people, called sitters, come together in an attempt to contact and communicate with deceased humans who are believed to be spirits and exist in a dimension outside of our physical time-space reality.
Interestingly enough, Conan Doyle himself "appeared" in photographs taken after his death and he was "contacted" on at least one occasion during a seance.
When asked about the inn's latest guest paranormal activity, Staub said, "Our re-creation of a Victorian seance was one way civilians dealt with the great loss of loved ones."
A Ouija board seance is a combination of two controversial methods for attempting to contact and communicate with spirits.
Most people who participate in a seance are trying to make contact with dead people, possibly friends or relatives.