The Three Keys

1. The Thirteen Innocents1959-09-13 2. The Money Game1959-09-20 3. The Sleeping Giant1959-09-27 4. The Two-Headed Monster1959-10-04 5. The Long Weekend1959-10-11 6. You Can't Die Twice1959-10-18 7. Diamond S.O.S.1959-10-25 8. Private View1959-11-01 9. Dead on Arrival1959-11-08 10. Air Switch1959-11-15 11. The Angola Brights1959-11-22 12. The Chinese Mask1959-11-29 13. Slave Ship1959-12-06 14. The Man's a Clown1959-12-13 15. Last Man Lucky1959-12-20 16. No Flowers for Onno1959-12-27 17. Mr. George1960-01-03 18. The Thousand Mile Alibi1960-01-10 19. Act of Piracy1960-01-17 20. Game for Three Hands1960-01-24 21. The Collector1960-01-31 22. The Heiress1960-02-07 23. Payment in Advance1960-02-14 24. Checkmate1960-02-21 25. Fingers of Guilt1960-02-28 26. The Girl with Grey Hair1960-03-06 27. Trial at Cranby's Creek1960-03-13 28. Ascent to Murder1960-03-20 29. Slow Boat to Amsterdam1960-03-27 30. White Blackmail1960-04-03 31. A Foreign Body1960-04-10 32. In the Swim1960-04-17 33. The Three Keys1960-04-24 34. Eight Days Inclusive1960-05-01 35. Dressed to Kill1960-05-08 36. Cargo of Death1960-05-15 37. Desert Hi-Jack1960-05-22 38. Pipeline1960-05-29 39. The Absent Assassin1960-06-05