Death Merchant
1. The Death Merchant (1971)
2. Operation Overkill (1972)
3. The Psychotron Plot (1972)
4. Chinese Conspiracy (1973)
5. Satan Strike (1973)
6. The Albanian Connection (1973)
7. The Castro File (1974)
8. Billionaire Mission (1974)
9. The Laser War (1974)
10. The Mainline Plot (1974)
11. Manhattan Wipeout (1975)
12. The KGB Frame (1975)
13. The Mato Grosso horror (1975)
14. Vengeance of the Golden Hawk (1976)
15. The Iron Swastika Plot (1976)
16. Invasion of the Clones (1976)
17. The Zemlya Expedition (1976)
18. Nightmare in Algeria (1976)
19. Armageddon, USA! (1976)
20. Hell in Hindu Land (1977)
21. The Pole Star Secret (1977)
22. The Kondrashev Chase (1977)
23. The Budapest Action (1977)
24. The Kronos Plot (1977)
25. The Enigma Project (1977)
26. The Mexican Hit (1978)
27. The Surinam Affair (1978)
28. Nipponese Nightmare (1978)
29. Fatal Formula (1978)
30. The Shambhala Strike (1978)
32. Deadly Manhunt (1979)
33. Alaska Conspiracy (1979)
34. Operation Mind-Murder (1979)
35. Massacre in Rome (1979)
36. The Cosmic Reality Kill (1979)
37. Bermuda Triangle Action (1980)
38. The Burning Blue Death (1980)
39. The Fourth Reich (1980)
40. Blueprint Invisibility (1980)
41. Shamrock Smash (1980)
42. High Command Murder (1980)
43. The Devil's Trashcan (1981)
44. Island of the Damned (1981)
45. The Rim of Fire Conspiracy (1981)
46. Blood Bath (1981)
47. Operation Skyhook (1981)
48. The Psionics War (1981)
50. The Hellbomb Theft (1982)
51. The Inca File (1982)
52. Flight of the Phoenix (1982)
53. The Judas Scrolls (1982)
54. Apocalypse U.S.A.! (1983)
55. Slaughter in El Salvador (1983)
56. Afghanistan Crashout (1983)
57. The Romanian Operation (1983)
58. The Silicon Valley Connection (1984)
59. The Burma Probe (1984)
60. The Methuselah Factor (1984)
61. The Bulgarian Termination (1984)
62. The Soul Search Project (1985)
63. The Pakistan Mission (1985)
64. The Atlantean Horror (1985)
65. Mission Deadly Snow (1986)
66. The Cobra Chase (1986)
68. The Hindu Trinity Caper (1987)
69. Miracle Mission (1987)
70. The Greenland Mystery (1988)

Murder Master
1. Death Trap (1973)
2. Caribbean Caper (1973)
3. Operation Hooker (1974)

C.O.B.R.A.
1. The Heroin Connection (1986)
2. Paris Kill-Ground (1987)
3. The Red Dragon Operation (1987)
4. Nightmare in Panama (1987)
5. Project Andromeda (1988)
6. Belgrade Battleground (1989)

Super Death Merchant
1. Apocalypse (1987)

Shadow Warrior
2. Caribbean Blood Moon (1988)
3. Ninja Nightmare (1988)
4. Hell Wind in Burma (1988)