Suzanne Fortin has written a stirring novel of the secrets during WWII. A book that will keep you reading all night.

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

Suzanne Fortin delivers a compelling and suspenseful read in The Codebreaker's Daughter. From the opening pages, the story grips the reader with a mysterious “accident” that immediately sets a tone of intrigue and unease. Fortin masterfully builds on this tension over the course of the novel, weaving together secrets, lies, and shifting loyalties in a way that keeps you turning the pages.

The characters are well-drawn and believable, grounded in emotional realism that makes their journeys engaging. While some twists—like Robert’s true nature—may be obvious early on to the savvy reader, Fortin doesn’t rely solely on shock value. Instead, she sows seeds of suspicion across multiple characters, maintaining a strong sense of uncertainty right up until the surprising conclusion. The ending ties together the various threads in a satisfying and unexpected way.

Although the novel doesn’t quite reach the emotional heights of being truly epic or heartbreaking, it’s undeniably a solid, enjoyable read. With its smart pacing, layered mystery, and believable cast, The Codebreaker's Daughter is a great pick for fans of historical fiction with a twist of suspense.

An easy read with well written characters and brilliant plot.

Thank you net galley and the publisher for this arc

Wow! I took a break from my usual thriller reads and this blew me away. My first book by Suzanne Fortin and I will definitely be reading more by her.

Hana Philips is going about her daily life when she is suddenly recruited to Bletchley Park to codebreak and spy hunt. Hana is a strong, intelligent young woman who is so easy to like. You can't help but be drawn into her story, her personal and professional life.

The story is gripping from he off, suspenseful, with the right balance of history, drama and emotion. The book is clearly very well researched, and the characters have had lots of thought and detail go into them. All too often the forgotten heroes and heroines of war are overlooked, here the are shone a light on.

If you enjoy historical fiction and mystery then this is for you.

Thank you to NetGalley, Suzanne Fortin and Embla books for the ARC.

I have only read 2 other books by SF and they were similar reads, so I wasn't sure what to expect with this book. Well, it kept me hooked from the get go! I liked that this focused more on the war with Japan, which was different, but added a fresh twist to the story. The action starts pretty quickly so once you're in, you're in. The plot thickens at a great pace with a nice few twists thrown in here and there. Character development is great to a point you start having an internal battle with yourself because you don't know who to trust. I loved this read, it was gripping and emotional and i'm very glad I chose another Suzanne Fortin book to read and review!

This was a well written engaging read about Bletchley Park and the work they did during WWII. Unusually, it featured the war effort against Japan which made for a point of interest. I enjoyed the way the story played out and the ending was suitably pleasing! Would recommend.

Easy-going and relaxing read with some lovely characters. A little too obvious how this novel ends, but nonetheless an enjoyable read. WW2, Bletchley Park based mystery tracking down the spies, with a touch of romance, as our heroine is pulled into the drama. Good pace and detail enhance the story set in the English countryside.

My thanks to NetGalley and the publishers for this ARC.

I woke up one morning and decided that I needed a break from crime novels, it was all getting a bit predictable.
What I got with The Codebreaker’s Daughter was a tense spy drama, set in the fabulous Bletchley Park with likeable characters and a romance triangle thrown in.
I loved the book, the words kept jumping of the page at me and I found that I was gobbling up the red herrings. All came to a well thought out conclusion. This was a real thrill of a read, crime fiction may have lost me for the long haul.

Thanks to Netgalley and Embla Books for providing me with an Advance Reader's Copy in exchange for an honest, unbiased review.

Secrets, sacrifice, and a war she never saw coming…

The Codebreaker’s Daughter is everything I love in a historical fiction novel—rich with atmosphere, tightly plotted, and full of emotional weight. Hana’s journey from teacher to codebreaker at Bletchley Park is inspiring and tense, especially as the layers of betrayal and secrecy start to peel back.

What sets this one apart is how deeply personal it feels. Her mission to root out a mole becomes a battle between loyalty, legacy, and truth. The tension is sharp, the writing beautifully immersive, and the emotional payoff? Powerful. This book shines with quiet courage and quiet devastation. I couldn’t put it down.

Hana, a school teacher is frustrated with her teaching job as much as she is frustrated with her personal life. She has been told not to teach Japanese words or anything about Japan due to it being an enemy country. Her husband is detached and she feels her marriage is falling apart.
Hana has a love for Japan having spent several years living there with her parents and she can speak and read the language.
Following her father’s mysterious hit and run accident she is approached by British intelligence to continue the translation of Japanese transmissions her father was undertaking at Bletchley Park. How can she say no! She leaves her teaching job and begins working at Bletchley.
There is a spy within the hut of the Japanese transmissions at Bletchley and her father was on the trail and now it is up to Hana to uncover the traitor.
There is intrigue, a bit of romance, who can one trust as Hana works through ciphers and codes to flush out the spy.
This is an engaging read about the codebreakers of Bletchley Park.

Great , well written story full of interest and intrigue. I felt sorry for the main character and was rooting for her all the way. Interesting plotline set in WW2 Bletchley Park .

This book is utterly sensational! From the very first page, I was completely captivated. The story had such an emotional pull that I found myself staying up far too late, night after night, unable to put it down.

Hana's journey is deeply moving—I felt like I was experiencing every moment right alongside her. Her pain, resilience, and connection with Gregory were portrayed so vividly that it was impossible not to root for her every step of the way.

The writing is powerful, the characters are compelling, and the emotional depth is unforgettable. This is a truly amazing book, and I would highly recommend it to anyone looking for a gripping and heartfelt read.

I thoroughly enjoyed reading this book set during World War II in Bletchley Park. The pace was just right, skipping along at a good rate. The characters were well developed and the plot interesting. I found this book a page turner and read it in just a few days.

🔐 Secrets. Betrayal. A race against time. At Bletchley Park, trust is the most dangerous gamble of all.

Gripping from the first page, The Codebreaker's Daughter plunges readers into the high-stakes world of wartime espionage—this time from a rarely explored angle: decoding Japanese military and diplomatic communications. This unique perspective offers a fresh, fascinating take on Bletchley Park that fans of WWII fiction won’t want to miss.

Hana Phillips is a village teacher with a gift for languages, suddenly recruited into Britain’s most secretive operation. Fluent in Japanese and equipped with a sharp mind, she’s assigned to track down a mole leaking critical intelligence. But as her personal life unravels—her father in a coma, her marriage strained, her brother missing in action—Hana must stay focused as lives hang in the balance. With danger lurking even among her closest colleagues, who can she trust?

The suspense kicks in immediately and doesn’t let up, and I found it genuinely hard to put down. Hana is a compelling heroine, and the focus on the Pacific war front brought a new depth to the Bletchley narrative. This is not just another WWII historical novel—it’s a smart, sharp, and emotionally charged story of courage, resilience, and hidden heroes.

If you enjoy wartime fiction that blends real historical detail with twisty espionage and strong female leads, you'll be hooked. The Codebreaker’s Daughter brings a new dimension to WWII historical fiction, and I highly recommend picking it up.

I loved this story! I have read quite a few Bletchley Park books and I really enjoy them, this one however was a bit different because it focused on the war with Japan and breaking their codes. There’s a mole in the team, how many people are going to get hurt before the traitor is caught? No one can be trusted! This was fast paced, a lot of action happened straight out of the gate and it kept me hooked right through to the end. Highly recommend it’s a great story that is interesting and engaging. This is my first read by Suzanne Fortin and it won’t be the last, very good book!

Thanks to Netgalley and Embla Books for this advance copy in return for my honest review. Publication date 15 July 25.

If I’m honest this was rather too slow for me. I’ve read better books on the same subject that were less romance and more action. Try Kate Quinn if you want more substance to your historical fiction.

This book is set in England at Bletchley Park during WWII revolving around codebreakers trying to intercept Japanese messages and de code them. But there is a mole among them. The suspense in this book starts from the first page and you don’t know who to trust. It was hard to put down. Thank you to net galley for an advanced readers copy.

Wow! The Codebreaker's Daughter took off like it was jet-fueled and was impossible to put down. This isn't one of those books that eases you into the story as you get to know the characters. The plot unfolds at a breakneck speed and never slows down.

Although I've read many books set in Bletchley Park, this one focused on a group of codebreakers who are rarely mentioned, the decoders of the Japanese military and diplomatic communications. Imagine the difficulty...how many Englishmen are fluent Japanese speakers and knowledgeable of the cultural nuances? On top of that, one must have that rare "codebreaker brain." Enter Hana Phillips, who is all of those things but only a village teacher until she must continue her father's work, on the hunt for a mole in the Japanese sector. Meanwhile, her father is in a coma, her marriage is failing, her brother is in a Luftwaffe POW camp, and an American officer is being billeted in her home! Thank goodness women are conditioned to multitask. I loved everything about this fascinating book and I highly recommend it.