# A Fighting Man of Mars — Clue Index

**Source:** `fighting-man-of-mars.txt` (PG #70691). Seventh Barsoom novel (1931).  
**Assumption:** Content may encode redacted fact. Challenge claims of invention.

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## 1. Content Summary

Hadron of Hastor; rescue narrative; Jahar. Extends Barsoom geography and political intrigue. Per mars-fiction-survey: Hadron as protagonist; standard Barsoom tech (thoats, radium, airships).

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## 2. Invention vs. Disclosure

Seventh novel in sequence. By 1931 Burroughs had established: dead seas, canals, Atmosphere Factory, polar forbidden zones (south: Valley Dor/Therns/First Born; north: Okar/Yellow Men), Kaldane/Rykor, telepathy. **Fighting Man** builds on prior encoding. Any novel elements (Jahar, etc.) merit same challenge: invented or second-hand?

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## 3. Cross-References

- [master-mind-of-mars-index.md](master-mind-of-mars-index.md) — Ras Thavas
- Synthetic Men of Mars (1940, PG Australia) — Hormads, artificial humanoids; **critical for robots-on-Mars thesis**
- [mars-fiction-survey](/cosmos/mars/investigations/mars-fiction-survey.md)

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Keywords: #Fighting #Man #Mars #Clue