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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 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 fo... ...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... ...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... ...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... ...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... ...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... ...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... ...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 countless.../>

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... ...more

By D.M. 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... ...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 qui.../>

Showing 1 to 25 of 25
3.70 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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