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Combine common axes
These books are ranked using the plot structure labels extracted for Across a Billion Years.
Plot structure labels used: epistolary, letters home, message cubes, first-person narration, framed narrative, quest structure, investigation-driven, slow build, revelation-driven, twist ending, linear expedition
Focused on “open ending” where exact label matches exist.
This does not mean the books share the same plot, setting, quality, or difficulty. It means their plot structure embeddings are close.
A secret U.S. agency uses witchcraft and time travel to restore magic, only to unleash bureaucracy, paradox, and chaos.
Why this is here
Plot structure labels: epistolary structure · multi-voice narration · document collage · chronological hopping · interleaved timelines · mission episodic · slow build · info-dump heavy · open ending · cliffhanger ending · fragmented narrative · parallel threads
Semantic match: ranked by plot structure
Distance: 0.1498
A curious young man in Earth’s last city uncovers buried truths that could shatter a stagnant immortal civilization.
Why this is here
Plot structure labels: quest narrative · coming-of-age · mystery discovery · slow build · episodic journey · revelation-driven · open ending · ambiguous ending · partial explanation · indirect narration · summary-heavy
Semantic match: ranked by plot structure
Distance: 0.1542
An intrepid journalist joins a volatile scientific expedition into the Amazon to test claims of a dinosaur-haunted lost world.
Why this is here
Plot structure labels: frame narration · first-person narration · letter form · journal form · episodic journey · slow build · mystery reveal · expedition arc · quest structure · race to prove claims · trap and survival · mission conclusion
Semantic match: ranked by plot structure
Distance: 0.1244
A scholar’s investigation into strange documents uncovers an ancient cosmic entity, a cult, and a dread beyond reason.
Why this is here
Plot structure labels: framed narrative · epistolary · document-based · nested accounts · investigative unraveling · piecemeal revelation · slow build · open ending · worldwide hunt · climax reveal
Semantic match: ranked by plot structure
Distance: 0.1552
On a near-empty post-apocalyptic Earth, a boy pursues the thief who stole his beloved dog.
Why this is here
Plot structure labels: journey narrative · quest narrative · journal format · first-person narration · foreshadowing · twists · slow build · revelation-driven · frame-like address
Semantic match: ranked by plot structure
Distance: 0.1313
In a billion-years-later domed city, a restless outsider seeks the truth beyond a stagnant, immortal society.
Why this is here
Plot structure labels: mystery-driven · quest narrative · discovery arc · expanding scope · episodic progression · slow build · information reveal · late infodump · open ending · travel and discovery
Semantic match: ranked by plot structure
Distance: 0.1639
A clever orphan girl races north to rescue kidnapped children and uncover a secret that links souls, science, and power.
Why this is here
Plot structure labels: quest narrative · episodic travel · travel and reveal · gradual worldbuilding · slow build · increasing stakes · cliffhanger ending · open ending · plot exposition · journey-driven
Semantic match: ranked by plot structure
Distance: 0.1687
A murderous time-war survivor guards the end of time, until future visitors force him to confront his broken mission.
Why this is here
Plot structure labels: framed narration · first-person confession · episodic vignettes · slow build · sudden disruption · cat-and-mouse conflict · open ending · time-loop complications · repeated revisions · unpredictable turns · quest-like escalation
Semantic match: ranked by plot structure
Distance: 0.1700
A Seoul salesman races to reach his parents as mysterious black orbs spread, swallowing people and unraveling society.
Why this is here
Plot structure labels: rapid escalation · episodic encounters · journey narrative · quest narrative · slow-burn dread · open ending · ambiguous ending · unresolved mystery
Semantic match: ranked by plot structure
Distance: 0.1719
A dying screenwriter becomes obsessed with an actress's photograph and tries to reach her across time.
Why this is here
Plot structure labels: first-person journal · framed narrative · slow build · obsessive research · time-travel quest · ambiguous reality · open ending · tragic ending
Semantic match: ranked by plot structure
Distance: 0.1725
A Victorian expedition to Africa uncovers a lost civilization and its immortal queen, whose beauty hides danger and obsession.
Why this is here
Plot structure labels: framed narrative · letters and documents · quest narrative · travelogue · revelation-driven · slow build · episodic digressions · flashback history
Semantic match: ranked by plot structure
Distance: 0.1439
An ultra-wealthy immortal worldbuilder is drawn into a far-future revenge mystery tied to alien gods and his past.
Why this is here
Plot structure labels: slow build · mystery unraveling · quest · investigation · revelation-driven · delayed conflict · abrupt ending · compact narrative · episodic backstory · framed reflection
Semantic match: ranked by plot structure
Distance: 0.1523
