This was an intense, fast-paced thriller with depth and heart. The plot offered a complex storyline-merging sci fi, combat, and government conspiracies.

John and Nia are complicated characters with traumatic pasts-forcefully brought together because of a common link, but forge a strong bond because of their shared brokenness. It’s a relationship you learn to love and hope for.

The story is well-written and engaging-keeping you on the edge of your seat as our protagonists search for clues in this game of cat and mouse. Just when you think they, and you, have figured out what is going on, the author throws in another twist and sends the story is a completely different direction. He keeps the truth just out of reach.

This debut novel did not disappoint. Thriller fans will eat this one up. 4.5 stars

Although predictable, I did really enjoy the plot of this book. The idea of a quantum grail is scary, but it does make one ponder the question of what would happen if all of the possible outcomes in the world could be predicted.

I really enjoyed this book
Was a fast paced technological thriller
I loved that this definitely gave a feel of this could happen with I always throughly enjoy as it always adds a level of scary.
The chapters were short which I just love and I feel keeps you hooked even more cause your always like one more one more!
Very well written
Thanks so much for letting me read this

First thank you to NetGalley and the publisher for the ARC in exchange for an honest review.

Thought this book wasn’t something I’d normally read, I did enjoy it. I thought it was well written and easy to read. Some of the plot lost me at times, but it was overall interesting.

This is a techno thriller that works well mostly. Some of the quantum stuff was a bit difficult for me to follow but I managed. The characters were sound although a bit far-fetched. The plot was decent particularly considering it's a debut.

Overall, an enjoyable read.

The Quantum Grail by J.D. Redvale was an excellent book and I am so glad I found this book especially as he is a new author to me and is his first book. WoW! what a read and outstanding debut novel that will have you gripped from the very first few pages till the very end, once I started to read this book I could not put it down...... especially as I am in the middle of renovating my bathroom, I just wanted to get back to this book and leave my bathroom! lol.
If you are a fan of the The Bourne Supremacy series this is a book to get your teeth into it will not disappoint.

I loved the main character former Navy Seal, John Mitcham and he has had a rough time he suffered the loss of his daughter, his marriage is falling a part. then, his wife disappears but she leaves a goodbye note that holds a hidden message for John indicating her leaving was not by choice, he no longer holds back. He will do anything to find her and to get her back! He need to use all his skills and then he uncovers a secret government project.

WoW This book was fast paced and so addictive. I loved it Looking forward reading more books by this new author in the future.....I loved it.

My Hubby has just started to read it now and he never reads books! It may take him a while he may finish it by next year! lol

I highly recommend The Quantum Grail by J.D. Redvale Excellent read,

Big Thank you to NetGalley, JD Redvale the author and Literally PR for my ARC.

Exciting, pacy thriller with an author who has planned twists to satisfy the reader better than a quantum computer AI could ever achieve. World weary retired navy seal John Mitchum and digital world savvy hacker extraordinaire teenager Nia Banks, find themselves begrudgingly working together to find John’s missing wife. The trail is thin, but the digital world records so much. And as the plot and players are slowly revealed the tension builds. But can you do a better job than John and Nia working out what’s predetermined by 0s and 1s?Thank you to J.D. Redvale, LiterallyPR, Gotham Bookworks and NetGalley for the ARC. The views expressed are all mine, freely given.

Brilliant book. Fast paced and short chapters for easy reading, I loved it. The plot was interesting and a bit scary really in that it sounded feasible. Lots of twists and turns too. Thanks for NetGalley and Gotham Bookworks for my ARC.

I struggled to get through this book. It is very complex and involves technical details which i am not interested im.
It moves along slowly and then accelerates when it gets to one of the action chapters. These seemed to be very similar with large amounts of violence.
I’m African this book isn’t for me.

Je ne peux pas vraiment donner mon avis sur ce roman car je ne l'ai pas terminé.
J'avais été attirée par la mention du Graal dans le titre, mais certains thèmes abordés sont vite devenus trop durs pour moi.
Dans ce que j'ai lu, je note néanmoins que les chapitres sont très courts et que la lecture est ainsi très fluide. Le suspense est également très bien amené. Je pense que ça doit être être un bon thriller mais ce n'est pas pour moi.

This is very impressive as a debut novel. J.D. Redvale deserves the strongest praise for the very imaginative plot.

This is a military-style thriller, in the same genre as a good James Bond or Jason Bourne type. In fact, when you're reading this, it's easy to imagine a film (movie) version. Very fast paced, non-stop jam-packed action makes it easy to read and difficult to put down.

A minor gripe was about the 3/4 point, I found it a bit draggy, but the chapters are short and the closing paragraphs of each chapter summarise what happened in the chapter. So I'll confess to skipping a few chapters, but reading the end paragraph of each meant I kept the plot.

Character development of John and Nia very good. Nice surprises and ideas throughout. A really good read. J.D. Redvale shows a lot of promise and I'll look out for future work.

Thanks to Literally Public Relations for gifting me this book to read.

Former Navy SEAL, John Mitcham has suffered the loss of his daughter, and his marriage is failing. From his SEAL operations, he knows that holding fast and standing strong is the only way to move forward, so he continues to hold his head up, pull weeds from his daughters grave, and hope that his wife will take him back.

But when his wife vanishes, leaving a goodbye note that holds a hidden message for John indicating her leaving was not by choice, he no longer holds back. Having lost his daughter, he will stop at nothing to get his wife back. Nothing. Using all of his considerate skills he uncovers a secret government project that is almost beyond comprehension. To track down his wife he needs to kidnap the CIA’s most wanted hacker, holding her to his bidding in return for her freedom. She has been captured by the government, so he is moving against his own people, but John will go to any extremes to get his wife back.

Hacker Nia Banks is young, orphaned, and has been through a lot in her short life. Hating John for using her just the same as the government, she is resentful at first. But as the two work together and begin to realise exactly what they are uncovering, they become a strong team, with Nia reminding John of his daughter that he feels he let down. John becomes determined that Nia will come out of this safely, along with his wife.

As they learn more about the project, a cyber weapon called the Quantum Grail, the magnitude of their challenge becomes clear. How do you stop an enemy who knows your every move before you have even decided it?

This story was non stop action, not letting John, Nia, or the reader catch a breath. Based on a futuristic cyber weapon, which in theory could become a reality makes it a scary concept. Playing on the fears of AI taking over is a clever motive, and seeing where it could go if it really was able and allowed to take over is an interesting concept for a story. Seeing how far people will go to save those they love in comparison to a machine is a stark contrast. While some of the concepts were a little unrealistic (one hopes!) as a story of love, hope and determination it was an excellent mix of characters and action. Nia and John played off each other well, and their developing relationship was the crux of the story. While there were good twists in the plot, the ending was a little predictable, but enjoyable nonetheless. A great read, which one hopes remains far fetched in its concept, otherwise, the world will be a scary place!

*I received this book for review from NetGalley but all opinions are my own.

A riveting action-packed take on the power of Quantum Computing and AI with a poignant narrative that carries both the action and the story so beautifully well. I really enjoyed this book.

Thank you to NetGalley for providing an ARC in exchange for an honest review.

This book was advertised as a science fiction thriller -- it is not science fiction. It takes a scientific concept, misrepresents it (and a lot of science in general) to drive a pretty pointless, ill-thought out mystery story. At no point are any of the characters sympathetic at all, I simply had no reason to care for the main characters. The plot was simplistic, the "twists" obvious, and overall the writing was poor -- way too much fake dialogue telling us things rather than showing us.

Overall, given the option, don't bother reading it, it's not worth it.

This is a military thriller. Was hoping for more sci-fi but it is fast paced with a few twists.
Quite enjoyable but I’m not a fan of the bad language.

A fast paced military thriller with a small element of science fiction added to the narrative. I am not a reader of Jack Reacher novels but Lee Child fans will enjoy this book.

This is an outstanding debut novel. I can't remember when I last read anything that was so impressive in scope and overflowing with ideas. As a curtain raiser to a literary career this immediately thrusts J.D. Redvale into the 'must-read' category.
I loved the fact that despite the nonstop action, suspense and thrills the narrative tide is character driven and demands empathy at every twist and turn of the complex plot. No one will ever forget John Mitcham and Nia Banks.
Essentially it's about a cyberweapon that might just become reality, sooner than later, and makes the future look even more threatening and terrifying than it already is.
The fastest page-turner you are likely to read this year...or any year.

Fast-paced and punchy with plenty of twists, this was entertaining enough, if a little derivative. Fans of Lee Child will recognise Jack Reacher inspiration here and that’s no bad thing. However, The Quantum Grail lacked levity in my opinion. There needed to be more light to offset the darkness.

This gripping thriller hooked me from the very first page and never let go. The premise of The Quantum Grail—a stolen CIA supercomputer at the heart of a global conspiracy—felt both chillingly plausible and expertly crafted. The blend of espionage, advanced technology, and a personal quest for redemption is masterfully done.

Former Navy SEAL John Mitcham's relentless search for his kidnapped wife plunges him into a web of conspiracies and technological warfare. At the core of it all is the Quantum Grail, the stolen supercomputer capable of changing the balance of power. What I found particularly compelling was the dynamic, uneasy alliance between Mitcham and notorious hacker Nia Banks. Their evolving relationship is handled with authenticity, as both characters are forced to reconsider their initial perceptions of each other.

One of the novel’s strengths is its ability to explain complex science and cutting-edge technology in an accessible, engaging way. The pacing is relentless, with short chapters that keep the action moving at a breakneck speed, making it nearly impossible to put the book down.

While I expected more of a science fiction-heavy narrative, the novel leans more towards a high-octane thriller with sci-fi elements woven in towards the end. Still, the antagonist reveal was well-executed, and the plot is filled with enough twists and surprises to satisfy any thriller fan.

The Quantum Grail is a clever, compelling debut that will appeal to readers who love thrillers with a touch of speculative tech. I’m excited to see what this author has in store next!

A really good book far better than expected. I was slightly put off by the trigger warning re. PTSD and mental health but thought it irrelevant compared with the violence and number of people killed. Although computers and AI are part of the story, the main action is with John Mitcham, an ex-Navy seal seeking his wife who has been abducted. The book is essential a fast paced action chase.
I will certainly look out for future books by this author.