Drop-in Communicator
Term coined by parapsychologist Ian Stevenson to indicate
an uninvited entity or communicator at a séance, usually unknown
to medium or sitters.
Berger, Arthur S., and Joyce Berger. The Encyclopedia of
Parapsychology and Psychical Research. New York Paragon
House, 1991.
Stevenson, Ian. ‘‘A Communicator Unknown to Medium
and Sitter.’’ Journal of the American Society for Psychical Research
64 (1970)