Dark secrets swirl beneath the waters of Maverick Key in the second suspenseful romance from Margot Keene.
Ever since her beloved Nathan disappeared and was presumed dead after a catastrophic dive, Crystal has done whatever it takes to heal and care for her young daughter, Natalie. Nathan had always harbored secrets he claimed were meant to protect her, but with his disappearance declared a closed case by local authorities, she may never know the whole truth about his work.
As the island's elite diving team scrambles to address a growing environmental crisis, a newcomer suffering from amnesia arrives in Maverick Key, bringing Crystal face-to-face with what she believed existed only in her dreams.
Author’s Note: A young widowed marine biologist struggles to rebuild her life after escaping an abusive relationship. Blending diving adventure, small-town romance, romantic suspense, and a touch of the speculative, this second book in the Maverick Key series returns readers to its unforgettable setting and into the lives of both new and familiar characters.
Author of Maverick Key: Hearts on the Line, Margot Keene is a Florida native who turned her lifelong passion for storytelling into a full-time career. A former business analyst and project manager, she now creates swoon-worthy men, relatable heroines, and heart-stopping mysteries set amid the beauty and intrigue of the Florida coast. Her debut romantic suspense novel, Maverick Key: Hearts on the Line, is the first book in The Maverick Key Series and is available in eBook, print, and audiobook formats. Book Two, Tides of the Heart, is available on Kindle now, and print and audiobook formats are coming soon.
3⭐️! I was excited to return to the Maverick Key world! After the events of the first book, I was looking forward to learn what happened to Nathan and learn more about Crystal and Natalie.
I did feel like this book did overlook some of the bigger emotional aspects and trauma when it came down to what these characters went through. Although we did get some heartwarming and sweet moments, I feel like some of the inner dialogue came off as more dry and rushed. I feel like some more tension and buildup would’ve really sufficed in certain parts.
The mystery and suspense was definitely the highlight in this one, although surprisingly I found it to be a bit better in the first book. This second book definitely sets up for the third book, and the cliffhanger has me absolutely stoked for what seems like Wes Harrington’s story. He’s been my favorite character since first reading Maverick Key and I can’t wait to see what he’s been up to.
Thank you to Margot Keene and Book Sirens for this eARC!
The way she mixes in romance, mystery, and the technical aspects of diving is just so amazing! This book really pulls you into the next layer of suspense surrounding Maverick Key and Carter’s Drop.
I love that Nathan and Crystal were reunited and that Nathan is back where he belongs with his friends and family. The romance aspect of this book was written beautifully with Nathan’s amnesia and Crystal just happy he’s alive.
I’m glad we won’t have to wait too long for the third book to come out because I NEED answers! November is when the next book of the series comes out : The Hearts True North.
I highly recommend you read Maverick Key first as this book is the second in the series and builds upon a lot of what happened in the first book.
Tropes : * found family * Second chance * Amnesia * Romantic suspense * Ocean exploration
Thank you Margot Keene for the gifted copy of this book for my honest review!
Tides of the Heart by Margot Keene completely swept me away. This story has that perfect balance of emotional depth, suspense, and second chance longing that makes you feel everything right alongside the characters.
Crystal is such a beautifully written heroine. She is strong but still tender, determined to rebuild her life for herself and her daughter after so much heartbreak and trauma. Watching her navigate grief, unanswered questions, and the weight of her past felt incredibly real. You can feel how much she loves Natalie, and that mother daughter bond adds such warmth to a story filled with mystery and uncertainty.
The suspense element kept me hooked from the very first chapter. Nathan’s disappearance hangs over everything like a storm cloud, and when a stranger with no memories arrives in Maverick Key, the tension is immediate. I found myself holding my breath through so many scenes, trying to piece together what was truth and what was buried beneath layers of secrets.
The diving adventure and environmental crisis added such a unique layer to the romance. The ocean feels alive in this book. It is beautiful, dangerous, and full of hidden truths, much like the love story at its center. The small town setting of Maverick Key is vivid and immersive, and I loved returning to this world.
What truly makes this book shine is the emotional payoff. The romance is tender and hopeful, built on healing and rediscovery rather than instant perfection. It is about facing the past, finding courage, and choosing love even when it feels risky.
Tides of the Heart is heartfelt, suspenseful, and deeply moving. If you love romantic suspense with strong heroines, layered secrets, and a coastal setting that feels cinematic, this one is absolutely worth the dive.
I received an advance review copy for free, and I am leaving this review voluntarily.
Thank you, Margot Keene and Book Sirens for the advanced copy of "Tides of the Heart".
I fell in love with Maverick Key and all of the characters in the 1st book in the Maverick Key Series, "Hearts on the Line". So of course I was excited for the 2nd book, "Tides of the Heart", to come out.
I don't know how it's even possible, but I love this 2nd book even more! From the very first chapter, I was drawn into the story. This book is full of so much action, it's hard to put down. I love reading books with mysteries, suspense, thrillers and romance. "Tides of the Heart" has it all and so much more. The author has amazing descriptive writing skills that have a way of making you feel like you're right in the middle of what's going on. There were times that I caught myself smiling, laughing, crying and holding my breath. I even felt the chill of fear during a few scenes and the "not knowing" who could be trusted felt REAL.
There's a lot going on in this book, which made it really hard for me to put down. I could go into more detail, but then I might give too much away and spoil it for anyone who hasn't read it, so I'll just stop here and say that I highly recommend "Tides of the Heart" to anyone who enjoys reading "second chance" romance books filled with action, mystery, suspense, thrillers and of course, cliff hangers!!! And now, I must add, I CAN'T wait for Book 3 to come out!
𝗠𝘆 𝗧𝗵𝗼𝘂𝗴𝗵𝘁𝘀: I loved being back in Maverick Key and spending time with these characters again, their connections and small town chemistry are really the heart of the story. The bones of the plot are strong, and I can tell the author put a lot of effort into researching diving terms and procedures to make it feel authentic. That said, the diving jargon was a bit overwhelming at times and felt like it was trying a little too hard to prove how realistic it was, which sometimes pulled me out of the story instead of pulling me in.
My biggest struggle was that the story felt rushed and a little underdeveloped. I kept wishing the author had slowed down and expanded the storyline to build more suspense and let the emotional moments breathe. Some transitions felt sudden, especially with the amnesia plot. I had a hard time fully buying into someone forming such a close relationship with what was essentially a stranger just because they were told that person was their spouse and a child so quickly calling someone daddy and being instantly attached. Even with those issues, I really love these characters and am invested in where their stories go next. I’ll definitely be reading Hearts True North when it releases.
Thank you Margot Keene for this ARC of Tides of the Heart.
Tides of the Heart takes place approximately 9 months after Maverick Key…
This is EXACTLY the follow up that I needed after Maverick Key! I loved book one, and this felt like an extension of that! We got more answers but of course more questions await… with a kinda cliff hanger, I have grabby hands right now for book 3‼️
I love how some of the questions from Maverick Key were answered, that you didn’t make us wait with long drawn out dramatics, it was perfect! I don’t wanna say too much as it would be a spoils for book 1 and 2 so just please read them both!
The way the mystery is stacking up is phenomenal and I NEED MORE! Maddie and Scott are magnetic and Nathan and Crystal are so special and I can’t wait for what’s next with Sid and Wes? Plus the divulgence of all the other details!
I love how Margot has made Carters Drop into its own sort of character, with so much going on around it and its discovery…
Tropes: 🌊Second Chance (of sorts) 💗MMC with Amnesia 🌊FMC Marine Biologist 💗Found Family 🌊It’s always been you 💗Memory Recreation 🌊Archeological Mystery 💗Atlantis Vibes?
Special thanks to Margot Keene for an advanced copy in exchange for my opinion.
I couldn't wait to be back in Maverick Key and book two did not disappoint. The end of story one left me with questions, so I was thrilled to continue the story. This book focuses on the widow (Crystal) and the stranger (Elliot). The gang was all back plus a few new people whom I do not trust. This time there's a pending ecological disaster. The coral is dying, the cave is heating up, and people are getting sick. The best divers and scientists come together to try to figure out the problem before it's too late. There's also a strange man who keeps showing up, adding a layer of mystery to the book. I won't spoil the details, but the romance part of the story was emotional and beautifully written. And the end still leaves unanswered questions. I want to know what happened to Nathan! I am patiently awaiting book three to see how the story all wraps up.
I was so excited for this book after reading the first one but ended up having mixed feelings.
I was so happy for Crystal having her family back together pretty early into the story. But I couldn’t get over the fact that Nathan threw himself back into the role of husband and father to people who were basically strangers, considering he had no memory of them.
The book occasionally lost me with the heavy use of diving terminology. While it clearly added authenticity to that part of the story, it sometimes felt like too much and pulled me out of the story a bit.
On the other hand, the setting descriptions were wonderful. The beachy atmosphere was vivid and relaxing, and it really helped create a strong sense of place and made me miss my sunny Florida home. Even with my mixed feelings, the coastal setting alone made the book enjoyable to spend time in.
This entire review has been hidden because of spoilers.
From the start, this story hooked me. Nathan Carter, in Miami’s Maverick Keys, strikes up a cute meet-cute with marine biology student Crystal on the beach. Seven years later, Crystal is the assistant director of environmental resources, still haunted by Nathan’s disappearance and presumed death. She married Mark, who betrayed her by killing Nathan and another professor, then kidnapped Maddie, who was saved in the first book. Crystal learns about a bleaching reef and is handed Nathan’s diary, feeling his presence still linger. Meanwhile, Elliot Traver dreams of Maverick Keys, waking up with no memory of his past as Nathan Carter. Their worlds collide as Nathan’s memories slowly come back, leading to emotional moments, including Nathan’s revelation and his reunion with Crystal. This book is an emotional roller coaster, intense, heartfelt, and captivating. I loved seeing Wes and the crew again, and I can’t wait for Wes and Sid’s story next!
This entire review has been hidden because of spoilers.
🤿 Tides of the Heart 🌊 ✍️ Margot Keene Kindle Edition Published: March 9, 2026 Available in print: April 6, 2026 Pages: 284 Rating: ⭐️⭐️⭐️ ⭐️⭐️/5
Tides of the Heart is the second book in the Maverick Key series. Both books are easy reads and I enjoyed the mystery and suspense along with the romance of the characters, Crystal and Nathan. The island location and environmental crisis are fast paced and adventurous that kept me wanting more. No spoilers here.
I highly recommend reading Maverick Key: Hearts on the Line before Tides of the Heart so it has all the details of what happened to Crystal and Nathan.
Thank you @margotkeeneauthor for the opportunity to read the Maverick Key series. It has been a pleasure. I eagerly await the third book, The Heart’s True North in mid-November.
Book Review • Kindle • paperback • Booksta • Reader • Bookstagram • Romance • Suspense • ARC • Street Team • Cozy Mystery • Indie author
First of all… Thank you to the author for the ARC. Tides of the Heart releases March 9th.
Tides of the Heart is the second book in the Maverick Keys trilogy, and while I went in excited, I also knew one thing: I was not going to get full closure yet.
And I didn’t. 😅
What I love most about this series is the characters. I’m genuinely invested in their lives now — their relationships, their questions, the tension still simmering beneath the surface. There’s more love in the air in this installment, but also more mystery lingering in the background.
Some answers come into focus, but not all of them — and that’s what makes November feel very far away.
Another solid 4-star read for me. I’m hooked… but I don’t love being left hanging.
Now I’ll just be over here hoping I get that ARC for book three. 👀
Tides of the Heart follows a marine biologist named Crystal, a widow who finds herself in the middle of an ecological crisis just as a stranger suffering from amnesia visits her beach town and turns her world upside down.
Book Yays: - Vibrant prose that really pulls you into the setting - Well-developed characters with natural relationship development - A unique plot line that manages to have significant depth while still feeling adventurous and heartwarming. - The suspense in this book delivers just as strongly as in book 1!
Book Nays: - I would have loved to see more development of the side characters. This book was much more focused on the primary characters than the first.
Thank you to Margot Keene and Book Sirens for providing me with an advance review copy of this book! I am leaving this review voluntarily, as it was a delight to read!
Margot Keene does it again with the romantic suspense! My review is going to be short and sweet because I don't want to ruin even one surprise. The titles of the chapters maybe should have clued me in - and now I realize why they are named what they are - but they didn't and when I realized the first twist - WOW. I was all in. I was gasping and kicking my feet the entire time. Every part of this book had me anxious and just waiting for the next surprise. I don't want to give anything away, but I will say that it is so satisfying to see some hurt become healed and for hearts to find their way back. I love the mystery elements and I cannot wait for the third book!
what to expect: *reunion *found family *twists! *romantic suspense *small town *ocean exploration
I received a complimentary eARC and my review is voluntary. Thank you to the author!
Just when I thought the Maverick Key story couldn’t get any better, Tides of the Heart absolutely wowed me. Margot Keane somehow managed to take everything I loved about the first book and build on it in the best way.
When I first read The Maverick Key as an ARC reader last year, I went in thinking it was going to be purely romance. I had no idea there was a mystery element woven into the story, and honestly that twist ended up being one of my favorite parts of the series. If you enjoy a cozy mystery mixed with romance, this one is definitely for you.
One of my favorite parts of this book was getting to follow more of Crystal’s story and learning even more about her relationship with Nathan. Their dynamic continues to grow in a way that feels both emotional and intriguing, especially as more layers of the overall mystery unfold.
Sometimes jumping into the second book of a series can feel a little disorienting, but that wasn’t the case here at all. Margot does such a great job of guiding the reader from book one into book two that it felt incredibly natural to slip right back into the world of Maverick Key.
And that ending… just like the first book, it completely got me again. I’m already counting down the days until book three because I need to know what happens next.
A huge thank you to Margot Keane for the opportunity to read Tides of the Heart as an ARC before its release. It was such a joy to return to this story and these characters.
"Tide of the Heart" is the second book in the Maverick Key series. I absolutely loved the first book and was thrilled to have the opportunity to read this advanced copy. The first couple of chapters provided a nice refresher on the events of the first book, but I still think it would be beneficial to read it beforehand. I really enjoyed the author’s character development; the characters feel so alive that they truly seem like part of your family. This story includes several twists and turns that I won't spoil for anyone. While I loved this book and finished it in just two days, it definitely left me wanting more.
I really enjoyed the first book in the series but the second one was even better!! The suspense and mystery around Carters drop intensifies as well as the danger! What secrets dos the cave possess and why are some people willing to harm others to keep them from finding it out?? The characters pull on your heart strings. Loved getting to know the new characters as well as getting to continue reading about some of my favorites from the first book. The ending left me so excited for the final book.
Some spice but nothing graphic and it doesn’t pull away from the story. The suspense is enough to keep you engaged but nothing too overwhelming or dramatic.
4✨ What a fun and eventful return to Maverick Key! This second book in the series was full of even more intrigue and excitement. The depths of research that must’ve went into this book is astounding. Once again I felt like I was literally diving in with the characters and their stories. I was happy to see a true continuance of the original story. It gave even more meaning to the relationships previously established in the storyline plus we got a few new characters to get to know.
A really great romantic suspense story! I’m already excited for the final book in the series expected later this year.
Thanks to the author, Margot Keene, and BookSirens for the advanced reader copy!
Spoiler free review! I was so excited to jump back into Maverick Key! I thoroughly enjoyed the first book and had high expectations for this one, and it definitely lived up to it! Coming back to our central characters, but from two different narrators was fun, dug us deeper into the mystery of Carters Drop. I enjoy that the Science isn’t too smart for the casual reader, and that it had the right mix of mystery, romance and intrigue. The end of book 2 left on a cliffhanger and perhaps added another … sub genre to the list. And I’m not mad at it. Can’t wait to see where book 3 takes us!
I love mystery suspenseful romances! This one did not disappoint! All the suspenseful elements had me hooked right from the beginning! Add in the small town elements and details and it was perfect! I loved it! At just under 300 pages it was a delightful one sitting read before bed and wishing I had the next installment right now! Thank you very much Margot Keene for the wonderful eARC in exchange for my review!
I was anxious for this second installment after the first book captivated and completely immersed in the storyline and large cast of characters. But this continuation disappointed except for one major reveal. The rest felt under-developed and lacked the impact I expected. Mostly, a lot of unanswered questions and slow building towards the third installment.
I’m so happy to be apart of another ARC read for this author and this series. I just really like these characters and I like being in this world. They bring me comfort. I cannot wait for the conclusion.
This was sweet and romantic. It held emotions and mystery. I really enjoyed reading this as I’ve never read one set with this storyline. The main characters were wonderful and this held the perfect depth and it was captivating. Wonderful story.
I was excited to read this book and find out what happened next in Maverick Key. There were some spots I felt the plot was rushed and others where it felt drug out. I was left with many unanswered questions that will hopefully be answered in the next book. Overall it’s a good read.
After waiting several months for book 2 in the series, I read Tides of the Heart in one day. It reads so smooth and easy. All of the characters remain lovable and relatable. I’m even more excited now for book 3 and want to time jump to November ;)