Chapter Titles:
- 1. Modern Pirates (certificate #2797)
- 2. The Ray That Blinds (certificate #2798)
- 3. Man of Many Faces (certificate #2837)
- 4. The Listening Shadow (certificate #2838)
- 5. False Fires (certificate #2839)
- 6. The Dragnet (certificate #2851)
- 7. Sealed Lips (certificate #2852)
- 8. Exhibit "A" (certificate #2853)
- 9. The Masquerader (certificate #2854)
- 10. The Forced Lie (certificate #2855)
- 11. The Enemy Camp (certificate #2868)
- 12. Crime Does Not Pay (certificate #2869)
The character of Secret Agent X-9 was actually created by mystery writer Dashiell Hammett for a 1934 comic strip, drawn by "Flash Gordon" creator Alex Raymond, for the Hearst-owned King Features Syndicate, which wanted a crime-fighting strip to compete with "Dick Tracy."