Chapter Titles: 1. Mystery of the Cosmic Ray 2. The Far World 3. Island of Deception 4. Into the Chasm 5. The Space Ship 6. Tunnels of Treachery 7. Cavern of Chance 8. The Secret Room 9. Human Targets 10. Battle of the Warriors 11. Cosmic Anihilator 12. The Grotto of Greed 13. Wheels of Fate 14. Journey Into Space 15. Retribution