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Cover of Earth & Sky by Megan Crewe
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Earth & Sky

Megan Crewe

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Similar in premise + themes

These books are ranked using the premise + themes labels extracted for Earth & Sky. Books rank higher when they are close on every selected axis.

Premise labels used: time travel, alien experiment, alien rebellion, save the Earth, hidden sensitivity, race against time, reality unraveling

Themes labels used: free will, control, identity, humanity, self-worth, anxiety, guilt, time manipulation, colonialism, slavery, power dynamics, responsibility, consequences, experimental ethics, what it means to be human

This does not mean the books share the same plot, setting, quality, or difficulty. It means their premise + themes embeddings are close.

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Cover of Time's Divide by Rysa Walker

Time's Divide

Rysa Walker · 2015 · The Chronos Files

A time-traveling teen races through shifting timelines to stop a deadly global plan before the future locks in forever.

Why this is here

Premise labels: time travel · timeline shifts · prevent apocalypse · save the world · race against time · hidden faction · betrayal risk · love triangle

Themes labels: free will · choice and consequence · identity · trust · sacrifice · morality · power and control · religion and power · science ethics · history and causality · alternate realities · gender disparity · mass extinction

Semantic match: ranked by premise + themes

Distance: 0.1297

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Cover of The Quantum Garden by Derek Künsken

The Quantum Garden

Derek Künsken · 2019 · The Quantum Evolution

A quantum-savvy con man must use stolen time gates to save his people while outrunning paradox, enemies, and guilt.

Why this is here

Premise labels: time travel mission · posthuman survival · heist fallout · genocide prevention · rescue mission · political intrigue · quantum cognition · wormhole chase

Themes labels: responsibility · consequences · morality · identity · personhood · agency · free will · ethics of time travel · genocide · survival · posthumanity · politics · trust · guilt

Semantic match: ranked by premise + themes

Distance: 0.1482

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Cover of A Pivot In Time by Douglas E. Richards

A Pivot In Time

Douglas E. Richards · 2020 · Alien Artifact

An alien cube sends allies into ancient Rome, where a dangerous timeline shift and a loaded historical encounter collide.

Why this is here

Premise labels: alien artifact · time travel · timeline risk · future threat · historical intervention · race for power · international rivalry

Themes labels: ethics · free will · faith and science · history and consequences · power and responsibility · religion · civilization change · moral dilemmas · technology risk · good vs evil · purpose · time paradox · historical contingency · creation · immortality · human destiny

Semantic match: ranked by premise + themes

Distance: 0.1485

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Cover of Emily Eternal by M.G. Wheaton

Emily Eternal

M.G. Wheaton · 2019

An artificial consciousness must help save humanity when the sun starts dying far too soon.

Why this is here

Premise labels: artificial consciousness · dying sun · save humanity · trauma therapist · human genome · race against time · end of the world · humanity vs extinction · nonhuman protagonist

Themes labels: humanity · identity · free will · ethics · morality · trauma · empathy · consciousness · what it means to be human · sacrifice · survival · love · trust · power · posthumanism · eugenics · privacy · compassion · human nature · civilization · responsibility

Semantic match: ranked by premise + themes

Distance: 0.1487

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Cover of Genome by A.G. Riddle

Genome

A.G. Riddle · 2017 · The Extinction Files

A genetic code, a hidden project, and a global conspiracy collide as old secrets threaten humanity’s future.

Why this is here

Premise labels: genetic mystery · human evolution · global conspiracy · race against time · hidden code · lost research · apocalyptic survival · virtual reality

Themes labels: human nature · evolution · identity · free will · control · power · technology ethics · science and morality · existential questions · what it means to be human · privacy · freedom · survival · sacrifice · good vs evil · transhumanism · government control · social order · knowledge and secrecy

Semantic match: ranked by premise + themes

Distance: 0.1488

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Cover of Time and Again by Clifford D. Simak

Time and Again

Clifford D. Simak · 1983

A returned space explorer carries a world-changing book no one has written yet, while rival factions pursue him across time.

Why this is here

Premise labels: time travel · android rights · future book · identity crisis · alien contact · destiny

Themes labels: humanism · free will · destiny · equality · sentience · identity · human superiority · manifest destiny · slavery · corporate power · religion · human responsibility · evolution · mind-body change · coexistence

Semantic match: ranked by premise + themes

Distance: 0.1568

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Cover of The Unmaking Engine by Ian W. Sainsbury

The Unmaking Engine

Ian W. Sainsbury · 2016 · The World Walker

A power-evolving worldwalker and his partner face aliens, a deadly nemesis, and a threat to humanity.

Why this is here

Premise labels: alien nanotechnology · worldwalking · hidden powers · human extinction · secret experiment · alien agenda · multiverse

Themes labels: personal responsibility · community responsibility · humanity · moral choice · consequences · evolution · identity · transformation · good and evil · free will · survival · human worth · species worth · faith · religion · science and magic · technology and magic · end of humanity

Semantic match: ranked by premise + themes

Distance: 0.1582

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Cover of Iron Sunrise by Charles Stross

Iron Sunrise

Charles Stross · 2004 · Eschaton

A refugee teen and a UN agent race to uncover who destroyed a world before a retaliatory fleet wipes out another.

Why this is here

Premise labels: planetary destruction · race against time · mystery investigation · causality violation · post-singularity

Themes labels: causality · free will · genocide · political manipulation · identity · posthumanism · overpopulation · survival · espionage · totalitarianism · eugenics · morality · technology and society · consequences · truth seeking

Semantic match: ranked by premise + themes

Distance: 0.1593

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Cover of All Our Wrong Todays by Elan Mastai

All Our Wrong Todays

Elan Mastai · 2017

A self-loathing time-traveler from a utopian 2016 lands in our world and must choose between two lives.

Why this is here

Premise labels: alternate timeline · time travel mishap · utopian future · parallel reality · wrong timeline · fix the past · choice between worlds · identity crisis · love across timelines

Themes labels: consequences · choice · fate · identity · humanity · love · family · regret · loss · morality · free will · self-worth · alternate selves · technological progress · utopia and dystopia · what if · responsibility · environment shapes self

Semantic match: ranked by premise + themes

Distance: 0.1597

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Cover of Anachronist: A Time Travel Adventure by Andrew Hastie

Anachronist: A Time Travel Adventure

Andrew Hastie · 2017 · The Infinity Engines

A London teen thief discovers hidden time-travel powers and a secret order, forcing him to rethink his life and future.

Why this is here

Premise labels: time travel mission · secret society · reluctant hero · hidden world · alternate history · save the future · change the past · mentor protege · criminal past · better future

Themes labels: free will · consequences · fate · history and change · identity · redemption · poverty · survival · caregiving · love · responsibility · belonging · morality · time and memory

Semantic match: ranked by premise + themes

Distance: 0.1600

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Cover of The Enigma Cube by Douglas E. Richards

The Enigma Cube

Douglas E. Richards · 2020 · Alien Artifact

An alien artifact and a dangerous time-travel crisis force a scientist and an enhanced commando to fight for humanity.

Why this is here

Premise labels: alien artifact · secret research · humanity at stake · time travel · protect the device · unlock the secrets · future-changing technology · race against time

Themes labels: time travel ethics · history change · free will · causality · moral dilemma · responsibility · power and misuse · science and ethics · war and atrocity · fascism · good vs evil · future consequences · humanity's future · technological power · anti-Nazism

Semantic match: ranked by premise + themes

Distance: 0.1606

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Cover of Mass Effect: Retribution by Drew Karpyshyn

Mass Effect: Retribution

Drew Karpyshyn · 2010 · Mass Effect Novels

A Mass Effect tie-in where a kidnapped ex-operative is used in Reaper-tech experiments as allies race to find him.

Why this is here

Premise labels: Reaper technology · indoctrination · black ops · manhunt · experiment subject · human-alien conflict · race against time

Themes labels: indoctrination · identity loss · control · survival · loyalty · betrayal · humanity · morality of experimentation · protecting humanity · agency

Semantic match: ranked by premise + themes

Distance: 0.1607

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