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Cover of Sirius by Olaf Stapledon
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Sirius

Olaf Stapledon

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Similar in themes

These books are ranked using the themes labels extracted for Sirius.

Themes labels used: alienation, otherness, identity, belonging, consciousness, humanity, nature versus nurture, intelligence, love, loneliness, religion, spirit, society and prejudice, ethics of experimentation, war, fear of the unknown, community, soul, meaning of life, free will, self-worth, difference, empathy, bigotry, disability

Focused on “grief” where exact label matches exist.

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

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Cover of Frankenstein by Mary Wollstonecraft Shelley

Frankenstein

Mary Wollstonecraft Shelley · 2017

A scientist’s pursuit of life beyond death unleashes a tragic chain of responsibility, rejection, and ruin.

Semantic match: ranked by themes

Distance: 0.0775

Cover of The Similars by Rebecca Hanover

The Similars

Rebecca Hanover · 2019 · The Similars

At an elite boarding school, a grieving teen confronts a clone of her dead best friend and a web of secrets.

Semantic match: ranked by themes

Distance: 0.0947

Cover of The World Wasn't Ready for You by Justin C. Key

The World Wasn't Ready for You

Justin C. Key · 2023

A debut short-story collection fusing horror, sci-fi, and fantasy to confront race, class, prejudice, and identity.

Semantic match: ranked by themes

Distance: 0.0984

Cover of First Day on Earth by Cecil Castellucci

First Day on Earth

Cecil Castellucci · 2011

An angry, lonely teen who believes he was abducted by aliens meets someone who may help him escape Earth.

Semantic match: ranked by themes

Distance: 0.1010

Cover of Gladiator by Philip Wylie

Gladiator

Philip Wylie · 1930

A super-strong man’s life unfolds as he searches for belonging while society fears the gift that sets him apart.

Semantic match: ranked by themes

Distance: 0.0710

Cover of The Mad Scientist's Daughter by Cassandra Rose Clarke

The Mad Scientist's Daughter

Cassandra Rose Clarke · 2013

A girl grows up with her android tutor as love, identity, and robot rights reshape both their lives.

Semantic match: ranked by themes

Distance: 0.1014

Cover of Allegiant by Veronica Roth

Allegiant

Veronica Roth · 2013 · Divergent

In a shattered dystopia, Tris and Tobias venture beyond the fence and uncover truths that upend everything.

Why this is here

Themes labels: identity · loyalty · sacrifice · love · courage · truth · free will · choice · human nature · grief · war · betrayal · selflessness · nature vs nurture · power · social control · morality · belonging

Semantic match: ranked by themes

Distance: 0.1034

Cover of If We Cannot Go at the Speed of Light by Kim Cho-yeop

If We Cannot Go at the Speed of Light

Kim Cho-yeop · 2026

Seven Korean speculative stories explore space, aliens, and future tech through intimate questions of identity, grief, and connection.

Semantic match: ranked by themes

Distance: 0.1072

Cover of Neom by Lavie Tidhar

Neom

Lavie Tidhar · 2022 · Central Station

In a far-future desert city, a robot, an orphan, and a flower seller become entangled in love, memory, and upheaval.

Semantic match: ranked by themes

Distance: 0.1102

Cover of Frankenstein: The Original 1818 Text by Mary Wollstonecraft Shelley

Frankenstein: The Original 1818 Text

Mary Wollstonecraft Shelley · 2025

An original 1818 Gothic classic where a scientist creates life, then faces the human cost of abandonment.

Semantic match: ranked by themes

Distance: 0.1107

Cover of Vaster Than Empires and More Slow by Ursula K. Le Guin

Vaster Than Empires and More Slow

Ursula K. Le Guin · The Hainish Cycle

A misfit survey crew meets a forest world whose plant-life seems to feel fear and think as one.

Semantic match: ranked by themes

Distance: 0.0812

Cover of More Than Human by Theodore Sturgeon

More Than Human

Theodore Sturgeon · 1979

Misfit children with psychic gifts form a shared consciousness and must decide what power, identity, and humanity mean.

Semantic match: ranked by themes

Distance: 0.0880