chunk: such that she is incapable of escaping or preventing Madame Dauvray's being strangled by an intruder in the course of the seance; and is thereafter abducted to Geneva, still trussed, gagged and helpless, with various clues being left behind to incriminate her as accomplice in the murder. Inspector Hanaud of the Paris SĂťretĂŠ (in several of his novels, Mason's equivalent of Christie's Poirot) unravels the conspiracy and rescues Celia when on the brink of being drugged and dumped into Lake Geneva.