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Cover of Friday by Robert A. Heinlein
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Friday

Robert A. Heinlein

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Similar in characterization

These books are ranked using the characterization labels extracted for Friday.

Characterization labels used: strong heroine, female action hero, secret agent, combat courier, artificial person, enhanced human, supercompetent, resourceful, socially isolated, outcast, sexually confident, emotionally guarded, loner, misfit

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

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Cover of Junkyard Cats by Faith Hunter

Junkyard Cats

Faith Hunter · 2020 · Junkyard Cats

A secretive scrapyard owner must defend her hidden tech, her strange allies, and her life when old enemies come hunting.

Why this is here

Characterization labels: tough heroine · female protagonist · survivor · hidden powers · more-than-human · resourceful · isolated · badass · weapons dealer · war veteran · snarky AI · warbot companion · enforcer · mercenary · lonely · secretive · strong female lead · unconventional heroine

Semantic match: ranked by characterization

Distance: 0.1317

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Cover of Velocity Weapon by Megan E. O'Keefe

Velocity Weapon

Megan E. O'Keefe · 2019 · The Protectorate

A stranded gunnery sergeant wakes on an enemy AI ship centuries later while her brother hunts her across a fractured star empire.

Why this is here

Characterization labels: strong female lead · military officer · gunnery sergeant · younger brother · Keeper · sentient AI · rogue AI · spy · smuggler · thief · criminal · disabled protagonist · amputee · snarky protagonist · competent protagonist · reckless protagonist · political character

Semantic match: ranked by characterization

Distance: 0.1484

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Cover of The Bane by Keary Taylor

The Bane

Keary Taylor · 2013 · The Eden Trilogy

A memory-lost teen in a last human colony must survive a robot plague while choosing between two very different boys.

Why this is here

Characterization labels: strong heroine · kick-ass heroine · female lead · survivalist · hunter · scout · leader · protector · emotionally guarded · part human · part machine · amnesiac · mysterious newcomer · secretive love interest · steady caretaker · soldier · doctor · young adult protagonist

Semantic match: ranked by characterization

Distance: 0.1494

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Cover of Games of Command by Linnea Sinclair

Games of Command

Linnea Sinclair · 2007

An alliance forces a secretive captain to work with her cyborg former enemy while a wounded outsider threatens both romance and politics.

Why this is here

Characterization labels: strong heroine · capable heroine · sassy heroine · commanding officer · cyborg hero · virgin hero · secretive heroine · stoic hero · empath · telepath · renegade spy · mercenary · competent doctor · rake · emotionally repressed hero · vulnerable hero · unrequited lover

Semantic match: ranked by characterization

Distance: 0.1512

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Cover of Dark Matters by Michelle Diener

Dark Matters

Michelle Diener · 2022 · Class 5

A hidden Earth woman, a sentient warship, and a conflicted commander race to survive an alien coverup on Tecra.

Why this is here

Characterization labels: resourceful heroine · brave heroine · strong heroine · determined heroine · human woman · alien commander · military officer · sentient ship · thinking system · AI character · supportive hero · protective hero · angry AI · loyal AI · conflicted hero

Semantic match: ranked by characterization

Distance: 0.1542

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Cover of Six's Legacy by Pittacus Lore

Six's Legacy

Pittacus Lore · 2011 · Lorien Legacies: The Lost Files

A short prequel follows Six’s brutal survival, training, and loss before she ever meets John.

Why this is here

Characterization labels: strong female lead · badass heroine · warrior · fearless · reckless · independent · confident · resourceful · traumatized · stoic · vengeful · trained fighter · mentor-trained · captive survivor · cunning · protective

Semantic match: ranked by characterization

Distance: 0.1553

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Cover of Engineering Fate by Alexis B. Osborne

Engineering Fate

Alexis B. Osborne · 2021 · Outer Limits Quadrant

A human engineer stranded in alien space teams with an undercover peacekeeper to survive captivity, trafficking, and forbidden attraction.

Why this is here

Characterization labels: capable heroine · badass heroine · resourceful heroine · self-reliant heroine · undercover agent · protective hero · alien hero · possessive hero · alpha hero · sweet hero · outcast hero · noble hero

Semantic match: ranked by characterization

Distance: 0.1579

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Cover of Silver Shark by Ilona Andrews

Silver Shark

Ilona Andrews · 2011 · Kinsmen

A war refugee psychic hides her deadly talent on a new planet, only to fall for the powerful man she works for.

Why this is here

Characterization labels: female warrior · powerful psychic · trained killer · refugee heroine · powerful hero · security executive · competent protagonist · badass heroine · secretive heroine · kind hero · lonely heroine

Semantic match: ranked by characterization

Distance: 0.1587

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Cover of The Empire of Ashes by Anthony Ryan

The Empire of Ashes

Anthony Ryan · 2018 · The Draconis Memoria

A fractured alliance races across a steampunk world to stop a dragon-led war before civilization collapses.

Why this is here

Characterization labels: female agent · secret agent · unregistered outcast · rogue · captain · explorer · former thief · Blood-blessed · antagonist · military leader · spy · revolutionary · complex characters · strong female lead

Semantic match: ranked by characterization

Distance: 0.1595

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Cover of Mass Effect: Initiation by N.K. Jemisin

Mass Effect: Initiation

N.K. Jemisin, Mac Walters · 2017 · Mass Effect: Andromeda Novels

A former commando must recover stolen AI tech for a colony mission while uncovering secrets that could doom it.

Why this is here

Characterization labels: female protagonist · badass heroine · biotic · elite commando · huntress · socially awkward · responsible · fierce · protective · stubborn · charismatic leader · AI companion · mentor figure · ambitious

Semantic match: ranked by characterization

Distance: 0.1596

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Cover of Gracie's Touch by S.E. Smith

Gracie's Touch

S.E. Smith · 2012 · Zion Warriors

A teenage human rebel survives an alien war, time jumps ahead, and becomes the mate of a warrior who finds her in the future.

Why this is here

Characterization labels: strong heroine · computer genius · hacker · linguist · brave heroine · self-sacrificing heroine · young heroine · fragile but strong · protective hero · alpha male · warrior hero · commanding officer · emotionally reserved hero · cold exterior, soft interior · fated mate

Semantic match: ranked by characterization

Distance: 0.1608

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Cover of The Darkest Stars by Debbie Cassidy

The Darkest Stars

Debbie Cassidy · 2026

A guarded space thief is forced on a dangerous mission, only to end up fleeing with a strange crew and hidden secrets.

Why this is here

Characterization labels: badass heroine · strong heroine · snarky heroine · guarded heroine · loner · thief · breacher · survivor · fierce female lead · mysterious past · hidden power · secret identity · resourceful · stubborn · bratty · protective male · feral male · mechanical angel · sentient ship · AI companion · mechanical dog · misfit crew · complex characters

Semantic match: ranked by characterization

Distance: 0.1619

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