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Subject Twenty-One
Subject Twenty-One
Mar 16, 2026 9:06 AM

Author:A.E. Warren

Subject Twenty-One

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What if our future lies 40,000 years in our past? Subject Twenty-One is an astonishing debut novel in which a young woman's refusal to accept the status quo opens her eyes to the lies her society is built on.

A stonking good sci-fi & coming-of-age story all wrapped into one . . . a book that tackles humanity, hardship, and classism at the deepest level.' - Magic Radio Book Club

Elise's world is forever changed when she is given the opportunity of a lifetime - to work at the Museum of Evolution and be a Companion to the Neanderthal, Subject Twenty-One.

As a Sapien, a member of the lowest order of humans, she and others like her are held responsible for the damages inflicted on the world by previous generations. This job may be Elise's only chance to escape a stagnating life in an ostracised and impoverished community.

But it doesn't take long for Elise to realise that, away from the familiarity and safety of her home, her own secrets are much harder to conceal.

And the longer she stays the more she comes to realise that little separates her from the exhibits . . . and a cage of her own.

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PRAISE FOR THE TOMORROW'S ANCESTORS SERIES

'An unputdownable exploration into the ethics of science' Buzz Magazine'

Incredible . . . without a doubt one of the best YA sci-fi books I've ever read' Out and About Books

'Instantly engaging . . . widens out from a tale of a girl trying to find her own identity to a broader story encompassing an entire population's burden of oppression, and the desire for freedom' Track of Words

'One of the rare debuts that are really five star reads. Subject Twenty One grabbed me instantly and I couldn't put it down' Dom Reads

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Make sure you've read the whole series!

1. Subject Twenty-One

2. The Hidden Base

3. The Fourth Species

Reviews

A stonking good sci-fi & coming-of-age story all wrapped into one . . . a book that tackles humanity, hardship, and classism at the deepest level.

—— Magic Radio Book Club

An unputdownable exploration into the ethics of science

—— Buzz Magazine

A laudable debut with a sustained narrative and characterisations that demand the reader keep on their toes.

—— NB Magazine

Incredible . . . without a doubt one of the best YA sci-fi books I've ever read.

—— Out and About Books

An unexpectedly wonderful read. Unique and engaging with full Jurassic vibes to boot.

—— Fictional Maiden

[An] amazing debut sci-fi novel . . . I'd recommend everyone to read if you want a unique and fresh dystopian storyline

—— Darkling Reads

Instantly engaging . . . widens out from a tale of a girl trying to find her own identity to a broader story encompassing an entire population's burden of oppression, and the desire for freedom

—— Track of Words

This is one of the rare debuts that are really five star reads. Subject Twenty One grabbed me instantly and I couldn't put it down

—— DOMREADS

This book quickly made its way into my heart as the first book that included sign language throughout . . .I was honestly could have continued to read it indefinitely, such is the excellent craftsmanship of the story and the pull in the emotions.

—— Lauren Sparks

A thought-provoking and enjoyable read with intriguing premises and an original setting.

—— Future Fire Reviews

A fascinating read

—— Cheryl M-M's Book Blog

An interesting story, wonderfully written.

—— Jera's Jamboree

Well-thought out and fun to read.

—— Rosie Writes

A well-told story, incorporating some particularly interesting ideas.

—— Popular Science

Warren's ideas in this book are wonderful, playing on the current ambivalence about genetic engineering and envisaging a world in which it's the basis of a whole new caste system.

—— The Idle Woman

A unique and intriguing narrative in a believable dystopia.

—— Feed Me Fiction

Incredibly well-written...would happily recommend it to everyone.

—— Blam Books

Full of clever imaginings that make a thought provoking read . . . I found myself completely gripped by the story and fully immersed in its eerily atmospheric world.

—— BookClubForMe

Really interesting and thought provoking . . . explores the idea of what it is to be human, and whether we can live alongside each other without feeling the need to be "better" than anyone else

—— RamblingMads

I really loved Subject Twenty One . . . I just couldn't stop reading. This book made me cry, made me laugh, and made me think about my own life.

—— Nerdy Book Dragon

A treat for nerds [with] a focus on genetic engineering and reversing extinction

—— Sifa Elizabeth Reads

Absolutely fascinating! If you're a fan of Jurassic Park, Tahereh Mafi & Marie Lu's work, then this is the perfect book for you!

—— A Bookish Star

I really liked this book. Right from the start the story drew me in . . . I can't wait for the next book

—— Mugful of Books

So enjoyable and a super fast read . . . Made me feel proud of being a STEM girl . . . Go read this book for the adventure and discovery!

—— REBIREADS

Now THIS is a book I really enjoyed . . . covers some really great themes that are both topical and interesting. Social psychology, anthropology, paleontology, bias, racism, ethics - it's got it all!

—— Horner's Book Corner

Fascinating . . . has twists & turns & even broke my heart into tiny little pieces. I'd recommend this to fans of the Hunger Games, Maze Runner & Ready Player One.

—— BOOKIEMAMABEAR

This Jurassic Park-esque concept grabbed me immediately . . . a fresh, gripping read with themes of suspense, trust, ethics and friendships

—— Book Phenomena

I absolutely devoured this book . . . Warren did a perfect job of pulling me in and answering some of my questions, but leaving enough of it unanswered so that I want more . . . and I definitely do! I can't wait for the next instalment!

—— Elle Reads Books

A powerful novel.

—— Metro

Actress is a fabric of musings… The characters in Enright’s novels are absorbing because they seem recognisable in an unassuming way: they’re as lovely, boring and complex as the people outside the books.

—— Cal Revely-Calder , Daily Telegraph

Enright, herself a former actress, captures all the comedy and pathos that comes from living the strange, unreal life of an actor.

—— Charlotte Heathcote , Sunday Express

A raw, tender portrayal of a woman undone by her work, and the men who control it. Seamlessly wrought, it is quite bewitching.

—— UK Press Syndication

Actress is a poignant tale of the vicissitudes of fame and its effects on the loved ones of the famous.

—— Economist

Compelling.

—— James Moran , Tablet

The next stage in an illustrious writing careerstuffed full of dark wit, memorable lines and striking images.

—— Sarah Hughes , Scotsman

Enright is to Dublin as Didion is to California.

—— Ana Kinsella , AnOther

I've just started reading Anne Enright's Actress. I very much enjoyed her previous novel, The Green Road. This one has glorious lines even in the opening pages.

—— Tracey Thorn , i

I would definitely recommend Actress by Anne Enright, it is her at her very best.

—— Marjorie Brennan , Irish Examiner

Few reviews said how absolutely hilarious [Actress] is. Enright skewers beautifully those creepy provincial aesthetes of Dublin of the sixties and seventies.

—— Conor O'Callaghan , Irish Times

Enright is formidable in combining the concrete detail of lives – think of the extraordinary array of sibling portraits in her last novel, The Green Roadwith an acute understanding of the inchoate lives of families: the push and pull of loyalty; the projection of desires; the smothering of disappointment and unhappiness. Here she conjures [a] rollicking story.

—— Alex Clark , Oldie *Novel of the Month*

A rich, impressively imagined work about a stage and screen star who may never have existed but seems considerably more human than many real-life figures as seen through their own eyes or those of any but the finest biographers.

—— Philip Fisher , British Theatre Guide

This story is about mothers and daughters, but also secrets in families and women in Ireland. It's an easy read, with a quintessentially Irish tone... It's brilliant.

—— Jess Phillips , Observer

Anne Enright's brilliant novel is a darkly glittering account of the cost to both the mother and her daughter of Katherine's complicated fame.

—— Jane Shilling , Daily Mail

A gem from a former Booker winner.

—— Susie Mesure , i, *Summer Books of 2021*

Anne Enright['s]...writing is simply glorious. Comedy and tragedy in one.

—— Mary Lawson , Daily Mail, *Books of the Year*
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