BOOK I
THE CHARACTERS CONCERNED
| Those in the Light | Viola Lambert, the subject Mrs. Lambert, her mother Jos. Lambert, her step-father Anthony Clarke, her pastor Dr. Britt, her physician Morton Serviss, her lover Kate Rice, her friend Dr. Weissmann, her investigator Simeon Pratt, her patron |
| Those in the Dark | Waldron, her father McLeod, her "control" Waltie, her poltergeist Jennie Pratt, Pratt's eldest daughter Mrs. Pratt, "Loggy," and others dimly felt |