6Chapter Four.: The Note of Interrogation.
23Chapter Twenty One.: Two Hearts.
7Chapter Five.: Outward Bound.
24Chapter Twenty Two.: A Savant at Home.
8Chapter Six.: Captain Banfield Explains.
25Chapter Twenty Three.: A Counter-Plot.
9Chapter Seven.: My New Patient.
26Chapter Twenty Four.: Face to Face.
10Chapter Eight.: What Happened to me.
27Chapter Twenty Five.: The Woman in Black.
11Chapter Nine.: A Maze of Mystery.
28Chapter Twenty Six.: Husband and Wife.
12Chapter Ten.: The Major.
29Chapter Twenty Seven.: The Tempter.
13Chapter Eleven.: Voices of the Night.
30Chapter Twenty Eight.: Sought Out.
14Chapter Twelve.: The Morning After.
31Chapter Twenty Nine.: Put to the Test.
15Chapter Thirteen.: I Practise a New Profession.
32Chapter Thirty.: “La Gioia.”
16Chapter Fourteen.: A Theory.
33Chapter Thirty One.: Conclusion.
17Chapter Fifteen.: The Grey House.
