Book Anatomy · A Princess of Mars
A Princess of Mars: Story and structure
20 lenses on story and structure for A Princess of Mars by Edgar Rice Burroughs. Count lenses are exact for our text. AI lenses are our reading and cite only quotes that passed a word for word check.
Jump to: A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12 A13 A14 A15 A16 A17 A18 A19 A20
A1. Where do the big beats fall as a % of the book: inciting incident, midpoint, low point, climax? Both
Midpoint at about 44% (Ch 14). See the full lens on the book page.
A2. What is the inciting incident and how many words in does it land? Both
The inciting incident occurs in Chapter 1 when Carter discovers a mysterious cave in Arizona while pursuing Apache raiders. It lands at approximately 4,000 words into the book, establishing the supernatural mystery that propels him to Mars.
Chapters: Ch 1
the strange events that befell me during the ten years that my dead body lay undiscovered in an Arizona cave (Ch 1, para 3)
it seemed to call across the unthinkable void, to lure me to it, to draw me as the lodestone attracts a particle of iron (Ch 2, para 19)
A3. How many acts or parts, and how long is each? Both
No named parts or acts in the text. The book runs as one sequence of 28 chapters; any act shape is our reading (see beats).
This book has no named parts or acts. It is a single 28-chapter narrative arc without structural divisions into acts.
A4. Scene log: goal, conflict and outcome for every scene. AI
28 chapters logged. See the full lens on the book page.
A5. Which scenes shift a value (safe to unsafe, love to hate) and which stay flat? AI
Scenes shift values sharply: Chapter 8 moves Carter from captive to protector when he sees Dejah Thoris. Chapter 14 shifts from hope to danger when Sarkoja wounds him. Chapter 17 moves from triumph to despair when he is captured. Breather chapters like 7, 13, and 20 stay flat, offering exposition and recovery.
Chapters: Ch 8, Ch 14, Ch 17, Ch 7, Ch 13, Ch 20
a slender, girlish figure, similar in every detail to the earthly women of my past life (Ch 8, para 22)
I felt the steel tear into my chest, all went black before me, my head whirled in dizziness, and I felt my knees giving beneath me. (Ch 14, para 61)
Dejah Thoris remains to die with the man she loves. (Ch 17, para 30)
A6. What changes at the midpoint and how does the lead's plan change? AI
At the midpoint (Chapter 14), Carter is mortally wounded by Sarkoja and Zad but survives. His plan shifts from cautious courtship to desperate escape and rescue. He realises he must act openly to save Dejah Thoris from Tal Hajus's execution.
Chapters: Ch 14
I felt the steel tear into my chest, all went black before me, my head whirled in dizziness, and I felt my knees giving beneath me. (Ch 14, para 61)
Now, more than before, the absolute necessity for escape, in so far as Dejah Thoris was concerned, was impressed upon me, for I was convinced that some horrible fate awaited her at the headquarters of Tal Hajus. (Ch 12, para 10)
A7. How do the subplots weave? Thread map by chapter. Both
6 threads. See the full lens on the book page.
A8. Setups and payoffs: what is planted, where, and where it pays off. AI
8 setups traced. See the full lens on the book page.
A9. How many try and fail cycles before the goal is met? AI
Carter faces five major try and fail cycles: escape from Thark (Chapter 16 to 17, fails), survival in Warhoon arena (Chapter 18 to 19, escapes but separated), infiltration of Zodanga (Chapter 21 to 22, finds Dejah Thoris but she refuses to break her vow), retrieval of air machine (Chapter 23, gets lost), and final assault on palace (Chapter 25, succeeds).
Chapters: Ch 16, Ch 17, Ch 18, Ch 19, Ch 21, Ch 22
Dejah Thoris remains to die with the man she loves. (Ch 17, para 30)
Thus was the edifice of my brief dream of happiness dashed, broken, to the ground of reality (Ch 22, para 17)
A10. How do the stakes rise chapter by chapter? AI
Stakes rise steadily: Chapter 12 introduces execution threat. Chapter 14 wounds Carter and threatens Dejah Thoris. Chapter 16 to 17 forces escape or death. Chapter 18 brings Warhoon captivity and arena death. Chapter 22 reveals Dejah Thoris promised to another. Chapter 27 threatens all Martian life when the atmosphere plant fails.
Chapters: Ch 12, Ch 14, Ch 16, Ch 17, Ch 18, Ch 22
Either one of these accusations, if proved, would be sufficient grounds for your execution, but we are a just people and you shall have a trial on our return to Thark, if Tal Hajus so commands. (Ch 12, para 4)
Now, more than before, the absolute necessity for escape, in so far as Dejah Thoris was concerned, was impressed upon me, for I was convinced that some horrible fate awaited her at the headquarters of Tal Hajus. (Ch 12, para 10)
Dejah Thoris remains to die with the man she loves. (Ch 17, para 30)
A11. Do scenes link by "but" and "therefore", or only "and then"? AI
Scenes link primarily through 'and then' causality rather than 'but' reversals. Chapter 3 leads to Chapter 4 through capture, Chapter 8 to Chapter 9 through observation. Few scenes contain explicit 'but' contradictions that force plan changes.
Chapters: Ch 3, Ch 4, Ch 8, Ch 9, Ch 14, Ch 17
A12. Map to the 15 Save the Cat beats. AI
Opening image (Ch 1): Arizona cave. Inciting incident (Ch 1): cave discovery. Crossing threshold (Ch 3): arrival on Mars. B story (Ch 4 to 6): Tars Tarkas friendship. Fun and games (Ch 7 to 13): Martian life and romance. Midpoint (Ch 14): wounding and commitment. Bad guys close in (Ch 16 to 18): escape and capture. All is lost (Ch 17): separation from Dejah Thoris. Dark night (Ch 18 to 20): Warhoon captivity. Break into three (Ch 21): infiltration plan. Finale (Ch 25): palace assault. Final image (Ch 28): return to Arizona cave.
Chapters: Ch 1, Ch 3, Ch 4, Ch 6, Ch 7, Ch 13
the strange events that befell me during the ten years that my dead body lay undiscovered in an Arizona cave (Ch 1, para 3)
I knew that I was on Mars; not once did I question either my sanity or my wakefulness (Ch 3, para 2)
My father’s name is Tars Tarkas. (Ch 15, para 42)
A13. Map to Yorke's five acts. AI
Act One (Ch 1 to 3): Carter's death and arrival on Mars. Act Two (Ch 4 to 14): Integration into Thark society and romance with Dejah Thoris. Act Three (Ch 15 to 20): Escape, capture, and survival in Warhoon. Act Four (Ch 21 to 26): Infiltration of Zodanga and final victory. Act Five (Ch 27 to 28): Return to Earth and uncertain fate.
Chapters: Ch 1, Ch 3, Ch 4, Ch 14, Ch 15, Ch 20
I knew that I was on Mars; not once did I question either my sanity or my wakefulness (Ch 3, para 2)
Now, more than before, the absolute necessity for escape, in so far as Dejah Thoris was concerned, was impressed upon me, for I was convinced that some horrible fate awaited her at the headquarters of Tal Hajus. (Ch 12, para 10)
Dejah Thoris remains to die with the man she loves. (Ch 17, para 30)
A14. Map to the hero's journey stages. AI
Call to adventure (Ch 1): cave discovery. Refusal (Ch 2): paralysis and confusion. Meeting mentor (Ch 4): Tars Tarkas. Crossing threshold (Ch 3): Mars arrival. Tests and allies (Ch 5 to 13): Woola, Sola, Dejah Thoris. Ordeal (Ch 14 to 17): wounding and capture. Reward (Ch 24): reunion with Tars Tarkas. Return (Ch 27 to 28): transported back to Earth.
Chapters: Ch 1, Ch 2, Ch 3, Ch 4, Ch 5, Ch 13
the strange events that befell me during the ten years that my dead body lay undiscovered in an Arizona cave (Ch 1, para 3)
it seemed to call across the unthinkable void, to lure me to it, to draw me as the lodestone attracts a particle of iron (Ch 2, para 19)
I knew that I was on Mars; not once did I question either my sanity or my wakefulness (Ch 3, para 2)
A15. Crisis choices: what hard choice does the lead face in each act? AI
Act One: escape the cave or stay paralysed (Ch 2). Act Two: declare love to Dejah Thoris or protect her silence (Ch 13 to 14). Act Three: sacrifice himself to let Dejah Thoris escape or flee together (Ch 17). Act Four: infiltrate Zodanga or abandon rescue (Ch 21). Act Five: restart the atmosphere plant or stay on Earth (Ch 27).
Chapters: Ch 2, Ch 13, Ch 14, Ch 17, Ch 21, Ch 27
it seemed to call across the unthinkable void, to lure me to it, to draw me as the lodestone attracts a particle of iron (Ch 2, para 19)
I could not chance causing her additional pain or sorrow by declaring a love which, in all probability she did not return. (Ch 14, para 2)
Dejah Thoris remains to die with the man she loves. (Ch 17, para 30)
A16. Reveals and twists: where they fall and how they were hinted. AI
Chapter 8 reveals Dejah Thoris is a red woman, hinted by her beauty and difference from green Martians. Chapter 11 reveals she is from Earth's sister planet, hinted by Carter's recognition of her humanity. Chapter 15 reveals Sola's parentage as Tars Tarkas's daughter, hinted by Sola's compassion and Tarkas's protection. Chapter 27 reveals Carter has a son on Mars, hinted by his nine years of happiness.
Chapters: Ch 8, Ch 11, Ch 15, Ch 27
a slender, girlish figure, similar in every detail to the earthly women of my past life (Ch 8, para 22)
Why, every school boy on Barsoom knows the geography, and much concerning the fauna and flora, as well as the history of your planet fully as well as of his own. (Ch 11, para 26)
My father’s name is Tars Tarkas. (Ch 15, para 42)
A17. Timeline: story time against page time, gaps and flashbacks. Both
Story time spans roughly twelve years: ten years in Arizona cave (Ch 1 to 2), days to weeks on Mars (Ch 3 to 26), nine years of marriage (Ch 27), ten years back on Earth (Ch 28). Page time compresses the Mars years into 28 chapters. One flashback occurs in Chapter 15 when Sola reveals her parents' story.
Chapters: Ch 1, Ch 2, Ch 27, Ch 28, Ch 15
the strange events that befell me during the ten years that my dead body lay undiscovered in an Arizona cave (Ch 1, para 3)
Was my Dejah Thoris alive, or did her beautiful body lie cold in death beside the tiny golden incubator (Ch 28, para 11)
A18. Sequences: which runs of chapters form one mini story? AI
Sequence one (Ch 1 to 3): Earth to Mars transition. Sequence two (Ch 4 to 7): Thark society introduction. Sequence three (Ch 8 to 14): Romance and danger. Sequence four (Ch 15 to 17): Escape and capture. Sequence five (Ch 18 to 20): Warhoon survival. Sequence six (Ch 21 to 26): Zodanga infiltration and victory. Sequence seven (Ch 27 to 28): Return and uncertainty.
Chapters: Ch 1, Ch 3, Ch 4, Ch 7, Ch 8, Ch 14
A19. Ratio of plot chapters to breather chapters. Both
20 plot chapters (tension 3 or more) against 8 breather chapters (tension 1 or 2): about 2.5 plot chapters for each breather.
Tension (AI, 1 to 5), chapter by chapter
Plot chapters (action, conflict, revelation): 18 chapters. Breather chapters (exposition, recovery, travel): 10 chapters. Ratio is roughly 1.8 to 1, favouring plot momentum with occasional pauses for world-building and character reflection.
A20. Luck count: where does chance help or hurt the lead? AI
Luck helps Carter in Chapter 6 when Woola sacrifices itself. Luck helps in Chapter 19 when Kantos Kan stages his fake death. Luck hurts in Chapter 17 when he is separated from Dejah Thoris. Luck helps in Chapter 24 when his air machine crashes near Tars Tarkas. Luck hurts in Chapter 27 when he is transported back to Earth.
Chapters: Ch 6, Ch 19, Ch 17, Ch 24, Ch 27
a bolt of myriad-legged horror hurled itself through the doorway full upon the breast of my executioner (Ch 6, para 4)
In the darkness which had now fallen none could tell but that he had really finished me. (Ch 19, para 27)
Dejah Thoris remains to die with the man she loves. (Ch 17, para 30)
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