Adversary

by Jordan Rivet

In the thrilling conclusion to the Lost Clone YA sci-fi series, Jane returns to Grid City to execute a plan as desperate as it is ambitious. Her turn all her enemies against each other.

Henry Ironside is putting brain-control devices in his clone workers and selling the tech to other tycoons. If Jane doesn’t stop him, the clones’ last chance for freedom will be destroyed.

She maneuvers an ally into Ironside’s inner circle and launches a campaign against the agency. But their leaders will stop at nothing to thwart her. As her enemies close in, Jane seeks help from the two unlikely her former best friend, Isaac Ironside, and her batchmate—and agency loyalist—Janette.

Just when Jane thinks she’s making progress, Henry Ironside makes a shocking move, derailing all her plans. To save the clones, Jane must risk the people she loves most.

Get ready for the exciting final chapter in Jane’s story! The Lost Clone is a fast-paced science fiction series perfect for fans of YA dystopian adventures like Uglies and Divergent.

406 pages, Kindle Edition

Published June 8, 2025

About the author

Jordan Rivet is an American author of YA science fiction and fantasy featuring determined heroines, vivid worlds, and daring missions. Originally from Arizona, she lives in Hong Kong with her husband.

Jordan's YA fantasy series include Steel and Fire, Empire of Talents, The Fire Queen’s Apprentice, and Art Mages of Lure. Her science fiction includes Wake Me After the Apocalypse, The Seabound Chronicles, and The Lost Clone.

Reviews

[Deb Barringer · Rating 5 out of 5]

Adversary, the fifth and final book in Jordan Rivet's The Lost Clone Series, was everything I expected and so much more! Full of adventure, danger, murder, intrigue, subterfuge, hope and fighting for truth and rights against all odds. Allies to foes and foes to allies, Jane and her crew fight with everything they have to stop not only IronBlue, but the agency supposedly responsible for policing these huge corporations. But they are grossly outnumbered and outmatched. Who will be standing at the end? Will clones regain their freedom, or will free will for all be a thing of the past?

[Lj · Rating 5 out of 5]

If this series has to come to an end, this book is definitely the way to do it. It has all the fast paced twists and turns of the earlier books and is full of danger, intrigue, clever plots and counter plots, and all the characters you've come to know and love (or hate) throughout the series. In the end it all comes together in a satisfying conclusion but in ways you won’t see coming. It is immensely fun to read and so hard to put down.

I received an ARC and leave an honest review.

[Cathy Newman · Rating 5 out of 5]

I loved this entire series. I read this book from start to finish in 1 day. Couldn't put it down. Non-stop action, even a few unexpected surprises, and the major story arcs and characters nicely wrapped up, I think. A very satisfying ending to an excellent YA science-fiction series. I will miss these characters.

Side note: Goodreads is not showing books 4 and 5 as part of the Lost Clone series. Not sure if that needs to be fixed.

[Carlene · Rating 5 out of 5]

This book and this series concluded well. The stakes were higher than ever, if possible, the questions of morality came to the forefront, and I had a blast. It has been so fun to see Jane grow and go on this journey with everyone around her. Jordan Rivet, as always, hooks me with everything she writes. I've never been into Sci fi but if she's writing it, I'm loving it. I enjoyed this series so much!

[Bethe · Rating 4 out of 5]

Lots of action, a big surprise I guessed
Much better catch up from previous book
Oh joy pumpkin coffee in the future
Not a native Texan but have lived here over half my life, I object to their Texas disguise description
Non clones parent child relationship complicated popping out of birthing pod was much simpler.
Crazy clone demonstration with their faces showing unhappiness/anger text with commands
Great ending to series

[Christinaraven · Rating 5 out of 5]

Jane and her friends and enemies are back and so are all the twists and turns that make this series great. Drama, intrigue, surprise and so much more had me glued to the end to watch it all play out. Had to see who would make it alive to the end. Loved it and found it hard to put down.

[Rene Averett · Rating 5 out of 5]

An excellent wrap-up to this thought-provoking series. I loved the whole set, but this one really brought the excitement and emotion.

[Austin Lowe · Rating 4 out of 5]

Excellent series- at this point, I was so familiar and comfortable with the characters. I love how this was finished up and would like to see more set in this world Jordan has built!