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Peek Inside Valiant

The Valiant was supposed to save us. Instead, it triggered the end of the world. Now it’s up to me and my best friend-turned-more, Justin, to save us from aliens determined to kill us all.


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2019 Finalist for the YARWA’s Athena Award for Excellence in Young Adult & New Adult Fiction in the YA/NA Speculative Category

The Valiant was supposed to save us. Instead, it triggered the end of the world.

Earth is in shambles. Everyone, even the poorest among us, invested in the Valiant’s space mining mission in the hopes we’d be saved from ourselves. But the second the ship leaves Earth’s atmosphere, our fate is sealed. The alien invasion begins. They pour into cities around the world through time portals, possessing humans, forcing us to kill one another.

And for whatever reason, my brother is their number one target.

Now the fate of the world lies in the hands of me, a seventeen-year-old girl, but with the help of my best friend, Justin—who’s suddenly starting to feel like more—maybe if we save my brother, we can save us all…


"An imaginative, fresh take on the time travel novel. Valiant has it all: breakneck adventure, high stakes, a kick-ass heroine, and a time-twisting narrative. Seriously captivating sci-fi.” —Tosca Lee, New York Times bestselling author of The Progeny 

“I’m one that absolutely loves an extremely fast paced read with new happenings practically on every page and Valiant was just that sort of book.” – Carrie’s Book Reviews

“It’s quick paced and creative. The romance is sweet and the Earth take over is gory.” – D.M., Goodreads

“If you enjoy action-packed YA science fiction, then I highly recommend it!” – So Many Books, So Little Time

“You bet this book ends up on my keeper shelves once my print copy arrives…” – Carien, Goodreads

“Valiant is Edge of Tomorrow in a post-apocalyptic future, and Destefano’s Sara has the grit of Sarah O’Connor as she fights to save the people she loves.” – Jane, NetGalley

“I highly recommend Valiant to anyone that loves dystopian books.  It’s hard to tell a good story and have it be believable. This book is both.” – Books in Brogan

“If you enjoy action-packed YA science fiction, then I would recommend this book for you.” –Laila, Goodreads

“I would recommend this book to fans The 5th Wave and The Darkest Minds.” – Vivian, Goodreads

Additional Details

ISBN: 9781640634251
Release Date: Dec 4, 2018
Page Count: 352
Imprint: teen
Genre: sci-fi, young adult
Tropes: coming of age/family/social issues, friends to lovers, overcoming odds

Select Featured Reviews

See All Reviews on
By Carrie October 22, 2018

Yes folks, I have returned to the science fiction once again. This time we are staying on Earth and battling the invading aliens, woohoo! Valiant by Merrie Destefano is a young adult romantic science fiction fantasy read that is extremely fast paced and action packed.

In the very near future in Ameri ...more

By Danielle's October 26, 2018

Imagine your stuck on a time loop. You have one goal, to stop your brother from dying but if you knew what was going to happen would you also try and save a few others? Sara is given the chance to change history. She is visited by an alien who is again the invasion on Earth. He tells her what she ne ...more

By Anastasia October 19, 2018

Full Review on my blog!
3.5 - 4 Stars
*a copy was provided by NetGalley* 

Sci-fi, aliens, time travel, and futuristic things. Yes, YES, and YEsss. All things I love. But this, I liked it just enough, that it fell short of great.

Valiant is different and unique in its own way. A very quick, action pack ...more

By MissBecka March 23, 2019

Well that was unexpectedly fabulous!
I think the only thing that would have made this better for me would have been if Justin had been Sara's older brother instead of a love interest.
I think it would have given all the right loyalty and love needed for the group without feeling rushed or forced.
I am ...more

By Rae November 30, 2018

ARC provided by Netgalley in exchange for an honest review.

First I would like to thank Netgalley and the publisher for giving me the opportunity to read this book in advance. I really enjoyed this book and can't wait to see if there might be a sequel sometime in the future!

I blasted through this b ...more

By Meigan January 17, 2019

The Valiant was supposed to save the humans on earth, but instead, it brought about death and destruction in the form of an alien invasion. In Destefano’s version of near-future earth, humanity is on the brink of collapse thanks to various circumstances. Everyone has invested in Valiant, poor and ri ...more

By Christy December 31, 2018

I don’t think I’ve ever wanted the next book in the series more than at the ending of Valiant!

The Valiant has taken off and - uh - the aliens have invaded. Much like the Apollo missions, the Valiant was intended to bring people together but all that was thwarted when silver-turn-smoke aliens pull an ...more

By Carien October 19, 2018

You can bet I pre-ordered this book after seeing the cover and reading the blurb. Then I was offered an Advance Reader Copy, and I just couldn't say no to the chance to read it early.

The book begins with a prologue to explain the situation and what is at stake: After the launch of the Valiant aliens ...more

By Smart December 26, 2018

I love end of the world books! This was a great read that I will pass down to friends! Thank you netgalley for the free arc in exchange for an honest review! ...more

By Olivia October 25, 2018

"Valiant" is a fast-paced, YA sci-fi/thriller. Set in the future, during the second great depression, Earth has just launched a shuttle called Valiant to go to Titan and mine for resources. Immediately after the shuttle launches, the Earth is attacked by aliens known as Xua. The Xua can turn into sm ...more

By Jane October 09, 2018

I received this advance copy from the author through Netgalley.
Merrie Destefano has produced yet another galloping, heart stopping adventure.
Most of the world is excited about the space mission to Titan. It is supposed to save the world – but Sara knows better. She knows the launch of the Valiant tr ...more

By Alaina October 23, 2018

I received this ARC from NetGalley in exchange for an honest review.

Valiant was a pretty interesting book to dive into. It could've had more world building but since it gave me so much action and it was pretty fast paced - I overlooked it. In this book, you will see aliens (Xua) invading earth count ...more

By Amber (The Book Bratz) November 26, 2018

The full review + more can be found at The Book Bratz

*Thank you NetGalley and Entangled Teen for the advanced copy for review!!*

Quite honestly, Valiant is one of the most intriguing and fast paced science fiction books I have read in a long time. Don't get me wrong I have read books that have h ...more

By Dee/ bookworm November 12, 2018

#Valiant #NetGalley

publisher synopsis: The Valiant was supposed to save us. Instead, it triggered the end of the world.
Earth is in shambles. Everyone, even the poorest among us, invested in the Valiant’s space mining mission in the hopes we’d be saved from ourselves. But the second the ship leaves E ...more

By Becca November 18, 2018

I received a free copy from Entangled Teen for my honest review.

This book was a fast-paced, sci-fi adventure! Every chapter ended with raised stakes or a new mystery, so it held my attention all the way through. I actually finished it in one day. :)

Some favorite things about the book:

-I enjoy readin ...more

By Jill December 20, 2018

5 stars ⭐️ Take a really deep breath before you dive into this book because there’s non-stop action, adventure and excitement from page one! Valiant is a gripping and original YA sci-fi novel about an alien invasion, time travel, unlikely heroes and friendship. I could not put this book down and did ...more

By Katherine December 03, 2018

** Review can be found at **
Sara and her friends are just as excited as the rest of the world's population to see the Valiant space ship launch since it gives them hope for a better future. But when it launches, the alien invasion will begin which will wipe out ...more

By Teenreadsdotcom January 18, 2019

Quite honestly, VALIANT is one of the most intriguing and fast-paced science fiction books I have read in a long time. Don't get me wrong, I have read books that have had me feeling like I was a part of that world but VALIANT had a different feel. From page one VALIANT takes off and doesn't slow dow ...more

By Sarah November 16, 2018

Fast read, science-fiction/mystery/thriller. This was a good one if you enjoy adventure. I am a fan of Destefano and was happy to read this arc. Good action but would have liked a little more romance. Will be the kind of book my students who enjoy a science fiction read will enjoy. Than you netgalle ...more

By Solange January 22, 2019

I started reading this book knowing it was a stand-alone story. Unfortunately, it seems to have a sequel. Or i must say, it SHOULD have a sequel... Because if there's none, i'd be totally pissed!

Love the characters, the plot (with a twist), the love between Sara and Justin, and everything else...

I'm ...more

By Tammy October 22, 2018

I really enjoyed the sci-fi of this one. Romance was very slight. Lots of action. Open ended for next book. Sara was a great main character. Not too perfect and not whiny. Some twists in this one. Can't wait for next book. ...more

By Cindy January 07, 2019

Loved this edge-of-your seat and end-of-the world adventure! With romance, aliens, and high-intensity battles, this sci-fi story delivers a punch. ...more

By Kelly November 09, 2018

I received a copy from the publisher via NetGalley.

It is 2037 and the world has changed a bit. We have a second depression going on, we have had government programs in which so called genetics were bred for war and we are launching a space ship called Valiant on a space mining mission to a planet ca ...more

By Aden November 24, 2018

VALIANT is impossible to put down! This book takes you by the hand and pulls you into an action-packed adventure filled with intriguing characters, fantastic world-building, and one of the most unique species of aliens that I’ve ever read. With its high tension and non-stop action, this book is perf ...more

By Kat December 04, 2018

This was a brutal story, and not in a bad way.

I was instantly in this story from chapter one. There are parts to this world that take a few more chapters to really wrap your head around it, but overall, I was hooked!

And I was really surprised with the time travel elements. We are thrown into this cr ...more

Showing 1 to 25 of 25
3.72 avg rating
Merrie Destefano

About the author

Merrie Destefano

Born in the Midwest, former magazine editor Merrie Destefano currently lives in Southern California with her husband, two German shepherds, a Siamese cat, and the occasional wandering possum. Her favorite hobbies are reading speculative fiction and watching old Star Trek episodes, and her incurable addiction is writing. She loves to camp in the mountains, walk on the beach, watch old movies, and listen to alternative music—although rarely all at the same time.

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