This book is the perfect for people who loved the National Treasure Movies. I recently got this book as an arc and I am so glad that I was able to get an arc of this book. This book just got me out of a reading slump. I read it in two days and I would have read it in one sitting if I had the time.

Lets get into the premise of the book: We are dropped into the story and meet the main character Mia Haynes and how she is an ordinary teenager who main concern is telling her parents that she does not want to go to the college that they wanted her too. However, this becomes the least of her worries as she learns that her parents have a secret and everything is not wwhat it seems when agents show up at her door, demanding something from her parents. Mia, who thinks that her parents are regular people gets thrust into a world that sends her on a treasure hunt and turns her world upside down.

This book is very interactive and gives you a moment to solve clues. I felt like I was apart of the book and that I was actually with Mia in her journey to discover the truth. I hope the authors continue to make more book like this because I would read them all

This is a wonderful story about a young heroine on her quest to find answers about her father's past. It brings in vibes of the Da Vinci code or National Treasure with its rich plot components.

Codebreaker by Jay Martel is an exciting and fast-paced debut thriller that combines heart-pounding action with clever puzzles and a touch of romance. The story follows Mia Hayes, a brilliant teenager whose peaceful life is shattered when government agents show up at her door, seeking something her father has taken. After a tragic turn of events, Mia is left grappling with the betrayal of her father, who has gone on the run, and the mysterious circumstances surrounding her mother's death.

A non-stop race through Washington, D.C. follows, as Mia teams up with Logan, a rebellious hacker, to decode her father’s final message. As they uncover hidden secrets about Mia’s family and a potentially devastating attack, readers are invited to solve the codes alongside them, making the experience feel interactive and immersive. This makes Codebreaker so unique—it’s not just a thriller, but a puzzle you can actively engage with.

Mia is a fantastic protagonist: smart, resilient, and deeply relatable as she navigates the chaos that has upended her life. Logan adds a dash of charm and tension, creating a dynamic partnership that keeps things fresh. The romance between them is well-paced, never overshadowing the book’s suspenseful plot but adding depth to their connection.

The book’s setting in D.C. is a perfect backdrop for the story, with iconic locations and hidden historical secrets adding extra layers of intrigue. Martel does an excellent job balancing the technical aspects of codebreaking with the emotional journey Mia undergoes, keeping the pacing tight and the stakes high.

If you’re looking for a gripping, interactive thriller with heart and brains, Codebreaker is an absolute must-read. Jay Martel has crafted an engaging and intelligent debut that will leave you hooked from the first page to the last. Highly recommend!

This book is super fast paced and action packed. It is filled with so much history and there were several twists I didn’t expect. I’m always impressed with books that can intertwine history like this with the story. Plus conspiracy theories and cryptography with historical facts and places… it’s brilliant.

The story also includes real frustrations we are currently facing in this country. I thought that was cool.
I really enjoyed it. I love how the reader has the opportunity to crack the code themselves. It’s really neat. Great read

Thank you St Marten Press and NetGalley for giving me the opportunity to read this arc in exchange for my honest review.

For those who like the excitement of spycraft and/or hacking their race to crack a near impossible code is a bit of a thrill. I enjoyed the puzzles and loved when Mia decided to stop running. Quite the adventure! I would recommend this to anyone looking for a spy/conspiracy story. Excellent pacing and it never felt dull. Exactly what I needed this weekend.

Thank you for providing a copy for me to read and review; I loved it!

Synopsis: A brilliant teenage girl races across D.C. to decode the clues her father left behind which might be the key to saving the country.

Overall, I enjoyed the book. This was action packed and engaging. Adults can enjoy this even though we are not the target audience. The story gets started with an intense confrontation that changes the course of the main character's, Mia, life. Over the course of the book told in both real time and flash backs, we are shown how her life got to this point. There is a really good twist that changes the reader's perception of how to read the progression of the story. The only drawback to the story for me was that the flashbacks are introduced to0 abruptly and they would initially take me out of the story. I could get back into it, but it was a bit jarring. The writing style was very accessible and typical of an action/thriller that you read
today (a la Patterson, Balducci, etc.). The story has a clear ending, but it is certainly left that there could be a sequel. I would be up for reading another book by this author.

Thank you to NetGalley and St. Martin’s Press for accepting my offer of an ARC!
“This is what you get for playing spy.”
4.75/5
When I first got ahold of this book I honestly didn’t know what to expect. What I got in return is a book that read like an action-thriller movie with fleshed out characters and a story that got crazier by the chapter that heavily reminded me of Nation Treasure: Book of Secrets meets Carmen Sandiago. The twists and turns that took place in this book had me on the edge of my seat and I really felt like I was there with Mia and Logan trying to solve these riddles. Granted, my Nancy Drew/Benoit Blanc/Hercule Poirot/Sherlock Holmes hat had a solid layer of dust on it but nonetheless I always answered the riddles with confidence, whether they were right or wrong.

I enjoyed this one even more than I thought I would. Recognizing that I am absolutely not the target audience, it was still a fun little mystery/thriller. If you have a little that likes puzzles and codes, smart heroines, and a teeny touch of PG romance, they will love this book. Huge bonus points for the interactive parts (easily skipped if you don't want to play). A couple of them had me stumped!

Codebreaker, the debut novel by Jay Martel (the pen name of husband and wife writing duo Andy Bennett and Katy Helbacka), is an engaging and inventive thriller. While geared toward a teen/young adult audience, the novel will certainly appeal to adult readers - I simply could not put it down. Mia is a rising high school senior who is looking forward to a relaxing summer break. Instead, her world is shattered when government agents invade her home in search of something they think Mia's father has stolen. In the blink of an eye, Mia's mother is dead, Mia's father goes on the run, and Mia herself will soon be in danger. Mia soon teams up with hacker (and potential love interest) Logan, following a trail left by her father all over the nation's capital - chasing down clues, cracking codes, and evading shadowy government figures - to uncover the truth. I absolutely loved the interactive component of the novel - the reader has the opportunity to codebreak alongside the protagonists. Think of National Treasure x Dan Brown x The Night Agent. Highly, highly recommend, and can't wait to see what's next for Martel.

great book and very intriguing. I loved the problem solving and figuring out what happens. The clues were good at ending the story