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To protect the past, they must fight for their future. In the thrilling third book in the Tomorrow's Ancestors series a devastating change is on the horizon.

'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 has now been working for the infiltration department for a year, but is growing frustrated with their lack of progress, their unwillingness to fight back against an unjust world. When it's announced that they're going on the offensive, will she be ready for the consequences?

Twenty-Two finally has her freedom after serving her term of imprisonment. But not everyone believes she deserves to be released. If she is not welcome in Uracil, then where does she belong?

Genevieve's life as a high-ranking Medius is perfectly crafted to hide all weakness, but when she finds out what the Potior's have planned next at the Museum of Evolution, she starts to question her choices, and the cracks begin to show. Can she keep herself from shattering?

When a threat none of these women could have predicted comes to pass, they are all left to fight for their futures. Whether they are ready for it or not, their worlds will collide and nothing will be the same again . . .
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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

About the Author

A.E. Warren is the author of the Tomorrow's Ancestors series, which consists of Subject Twenty-One, The Hidden Base, The Fourth Species and The Final Rising.

After spending eight years working as a lawyer, she began to write in the evenings and early mornings as a form of escapism from life in a very small cubicle with lots of files. She self-published her first novels in her spare time, which were picked up by Del Rey UK which is the science fiction/fantasy imprint of Penguin Random House.

She is an avid reader, occasional gamer and fair-weather runner. She lives in the UK with her husband, daughter and hopefully, one day, a wise border terrier named Austen.

Reviews
PRAISE FOR THE FOURTH SPECIES -- :
Crisp and clean, with just the right mix of brusque practicality to move the plot along, interspersed with hauntingly beautiful moments of character introspection and emotion. * Julia Blake, author of Black Ice *
There's danger, action, adventure and excitement. There's heartbreak and loss alongside community and determination. There's manipulation, disappointment, and a few plot twists along the way. * Rachel Churcher, author of Battle Ground *
The plot is fast paced and action packed and I honestly couldn't put it down . . . If you still haven't picked up this series yet, what are you doing?! * Elle Reads Books *
Engaging . . . the characters are facing bigger stakes and threats. * Sifa Elizabeth Reads *



Book Information
ISBN 9781529101362
Author A.E. Warren
Format Paperback
Page Count 320
Imprint Penguin (Cornerstone)
Publisher Cornerstone
Weight(grams) 223g
Dimensions(mm) 198mm * 129mm * 19mm