The Invisible Harry Gold: The Man Who Gave the Soviets the Atom Bomb -- Contents -- Preface -- Part 1. The Spy -- chapter 1. South Philadelphia -- chapter 2. A Debt Repaid -- chapter 3. The Novice Spy -- chapter 4. The Evolution of a Secret Agent -- chapter 5. Semenov, Slack, and Brothman -- chapter 6. Dr. Klaus Fuchs -- chapter 7. The Los Alamos Papers -- chapter 8. The Postwar Years -- chapter 9. The Hunt for Raymond -- chapter 10. The Fatal Words -- Part 2. The Prisoner -- chapter 11. Conversion -- chapter 12. To Make Amends -- chapter 13. Prisoner 19312-NE -- chapter 14. State of Mind -- chapter 15. The Campaign for Parole -- chapter 16. Return -- Epilogue -- Notes -- Bibliography -- Acknowledgments -- Index.