Scorpion
Are you familiar with Dr. Carl Wickland’s book “Thirty Years Among the Dead” ?
wikipedia.org/wiki/Carl_Wickland
According to Wickland, he emigrated from Sweden to St. Paul, Minnesota, married Anna W. Anderson and moved to Chicago, graduating from Durham Medical College in 1900. Wickland's own autobiographical sketch lists accomplishments as a general practitioner of medicine, member of the Chicago Medical Society and the American Association for the Advancement of Science, and chief psychiatrist at the State Psychopathic Institute of Chicago.
Wickland turned away from conventional medical psychology and toward the belief that psychiatric illnesses were the result of influence by spirits of the dead. Wickland came to believe that a large number of his patients had become possessed by what he called "obsessing spirits", and that low-voltage electric shocks could dislodge them, while his wife Anna acted as a medium to guide them to "progress in the spirit world". Spiritualists considered him an authority on "destructive spirits" and he wrote a book in 1924, Thirty Years Among the Dead, detailing his experiences as a psychical researcher.