 The names of the 15 chapters are: 1. Vow Of Mystery, 2. The Enemy  Strikes, 3. The Hand of Treachery, 4. A Life in Jeopardy, 5. The  Message Stone, 6. The Midnight Attack, 7. The Double Game, 8. The  Strange Pact, 9. The Auction Block, 10. Outwitted, 11. Dangerous  Waters, 12. House of Treachery, 13. On Perilous Grounds, 14.  Shifting Sands, 15. The Toll Of The Desert