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Undercover Redemption (Special Forces: Operation Alpha)
She tracks endangered sea turtles for a living… now she’s the one being hunted.
Recently divorced marine biologist Gabriella Valentino came to the remote shores of Tortuguero National Park for a fresh start—far from her memories of her toxic marriage and the life she barely survived. Among nesting sea turtles and moonlit beaches, she finally found purpose: protecting the vulnerable from those who would destroy them.
She never expected to become one of the hunted.
When Gabriella’s research uncovers a poaching network more dangerous than she imagined, she draws the attention of the last man she should trust—Mateo Emilio. Handsome, controlled, and dangerously compelling, Mateo isn’t just another ally in the field. He’s an undercover operative… and she’s now part of his mission.
Mateo has spent years infiltrating criminal networks, living a double life where trust is a liability and attachment is a weakness. But Gabriella was never supposed to matter. Not with her stubborn courage, her sweet nature, or the way she looks at him like he’s more than the monster he pretends to be. And definitely not with the way she makes him want things he can’t have.
When Gabriella is targeted for what she knows, Mateo is forced to make an impossible choice: complete the mission that could dismantle an entire nefarious criminal organization… or protect the woman who’s become his greatest vulnerability.
As danger closes in and secrets begin to unravel, the line between captor and protector blurs into something far more dangerous.
Undercover Redemption is part of the series Sentinels of The VEIL and can be read as a standalone. It features an undercover operative hero, a 40+ sweet and sassy STEM heroine with struggles of her own, forced proximity, found family, and plenty of steamy moments.
**Please note that some readers might find some situations depicted in this book triggering as there are issues referenced regarding cheating, DV, SA, and other woman drama.
Recently divorced marine biologist Gabriella Valentino came to the remote shores of Tortuguero National Park for a fresh start—far from her memories of her toxic marriage and the life she barely survived. Among nesting sea turtles and moonlit beaches, she finally found purpose: protecting the vulnerable from those who would destroy them.
She never expected to become one of the hunted.
When Gabriella’s research uncovers a poaching network more dangerous than she imagined, she draws the attention of the last man she should trust—Mateo Emilio. Handsome, controlled, and dangerously compelling, Mateo isn’t just another ally in the field. He’s an undercover operative… and she’s now part of his mission.
Mateo has spent years infiltrating criminal networks, living a double life where trust is a liability and attachment is a weakness. But Gabriella was never supposed to matter. Not with her stubborn courage, her sweet nature, or the way she looks at him like he’s more than the monster he pretends to be. And definitely not with the way she makes him want things he can’t have.
When Gabriella is targeted for what she knows, Mateo is forced to make an impossible choice: complete the mission that could dismantle an entire nefarious criminal organization… or protect the woman who’s become his greatest vulnerability.
As danger closes in and secrets begin to unravel, the line between captor and protector blurs into something far more dangerous.
Undercover Redemption is part of the series Sentinels of The VEIL and can be read as a standalone. It features an undercover operative hero, a 40+ sweet and sassy STEM heroine with struggles of her own, forced proximity, found family, and plenty of steamy moments.
**Please note that some readers might find some situations depicted in this book triggering as there are issues referenced regarding cheating, DV, SA, and other woman drama.
267 pages, Kindle Edition
Published July 14, 2026
About the author
Reno R. Mist
9 books134 followersReno writes high-heat contemporary, fantasy, and dark(ish) romances that explore kink, desire, and the complexities of love for characters thirty-five and older whenever possible.
A lifelong reader since childhood, she’s devoured everything from fantasy and thrillers to mystery and contemporary romance. Drawn to the unconventional, Reno crafts worlds where fantasy and passion collide — where gods, mortals, and monsters (both the spicy and unspicy kind) come alive on the page. She has a soft spot for full-body tattoos, tragic villains, and stories that blur the line between sin and salvation.
She lives with her menagerie of furbabies, her daughter, and her husband.
To stay up-to-date on exclusive content, head over to www.renormist.com and sign up for the newsletter!
A lifelong reader since childhood, she’s devoured everything from fantasy and thrillers to mystery and contemporary romance. Drawn to the unconventional, Reno crafts worlds where fantasy and passion collide — where gods, mortals, and monsters (both the spicy and unspicy kind) come alive on the page. She has a soft spot for full-body tattoos, tragic villains, and stories that blur the line between sin and salvation.
She lives with her menagerie of furbabies, her daughter, and her husband.
To stay up-to-date on exclusive content, head over to www.renormist.com and sign up for the newsletter!
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Review of advance copy received from Author
Undercover Redemption by Reno Mist
Reader Disclosure: This is an unbiased review of Undercover Redemption by Reno Mist, which I received for free as a beta reader.
Set primarily in Costa Rica and Panama, Undercover Redemption is a romantic suspense novel featuring a STEM heroine, Gabriela Valentino, and a military operative, Matteo Emilio. Gabriela, a marine biologist, has made incidental discoveries in her field research that threaten an underground, international criminal syndicate’s smuggling activities in Costa Rica’s Tortuguero National Park. The hero, Matteo, is embedded as an undercover operative for the syndicate posing as a local guide on Gabriela’s research team while simultaneously working undercover for a military organization trying to dismantle the aforementioned criminal syndicate.*
Although the novel briefly touches on Gabriela's work as a marine biologist, the story quickly pivots to her kidnapping and Matteo's covert rescue as the pair embark on a perilous trek through the Central American rainforest from Costa Rica into Panama.
The story contains some on-the-page violence and even more off-the-page violence. You have been warned, y'all.
There's rain and insects. (And a disappointing number of jaguars.) Because it's a tropical rainforest. It's kind of an ongoing thing. I don't want to reveal much more because Mist's tautly paced suspense is one of the story’s strengths. Once the story gains momentum, it doesn’t let up.
Although Gabriela is established early on as a domestic abuse survivor, that isn’t the defining feature of her character. Yes, she survives. Yes, she overcomes. But her core centers itself on living deeply and living well. She finds purpose and joy in her vocation, family, and friends. I'd like her in real life. Bet you would, too. She does have a few TSTL moments involving sexy times in high risk situations but I will forgive her those moments because limerence, high heat and sticky humidity can impair brain function. (I feel her cognitive dysfunction. I really do as I’m writing this review in a high-summer heat whilst sitting in a house with a broken HVAC system. The struggle is real.)
Matteo is every bit as likable as Gabriela. He's clearly exhausted by the violence and villainy permeating his world, yet he recognizes the role of desperation and circumstance in driving people toward despicable acts just as much as greed and selfishness can. Maintaining a soft heart in a hard world is a rare quality, but Matteo has it. It's what allows him to connect with Gabriela and ultimately risk everything to save her. It certainly doesn't hurt that ¡Matteo es muy guapo y fuerte! Love that for Gabriela.
This may be a controversial opinion, but I kind of dig Sally, too. She's scrappy. Her main man (there may or may not be some number side pieces on Sally’s plate) shows up with a Gabby-come-lately, and she still stands on her business, tries to protect her relationship and Matteo, and is unafraid to go after her dream of GTFO. Good for her. Alas, she's also kind of a sociopath, much like her father.** So it's difficult to be entirely #TeamSally. But I admire her grit and hope to read more about her in the future. She has potential as either a future anti-heroine or supervillain. And that’s not nothing.
Overall, Undercover Redemption is a fast, fun read with excellent pacing, engaging characters, and lots of suspense. Reno Mist is an enjoyable storyteller, and I'm genuinely looking forward to reading the next installment in the series.
*Poor Matteo, that’s a suffocating amount of work under multiple covers for a Central American field operative. The heat and humidity alone. Yeesh. Spoiler alert: By the end of the book, our man Matteo will be a triple threat. He’ll be a criminal syndicate man while undercover as a government operative while under deeper cover as a vigilantesque, supernatural Justice League agent…of sorts. But by the very end he will not be stuck under any more covers and will be affiliated with only one of said groups. I bet you can guess which one! Thankfully, Matteo is a man who works well under any number of covers and in steamy situations. ¡Ay de mí, Matteo, ay de mí!
**Sally’s dad is a real treat if that treat tastes of poison and is made with strychnine. No one deserves to be feasted upon by carrion eaters and slowly redeposited onto a rich, loamy Central American jungle floor more than this guy.
Reader Disclosure: This is an unbiased review of Undercover Redemption by Reno Mist, which I received for free as a beta reader.
Set primarily in Costa Rica and Panama, Undercover Redemption is a romantic suspense novel featuring a STEM heroine, Gabriela Valentino, and a military operative, Matteo Emilio. Gabriela, a marine biologist, has made incidental discoveries in her field research that threaten an underground, international criminal syndicate’s smuggling activities in Costa Rica’s Tortuguero National Park. The hero, Matteo, is embedded as an undercover operative for the syndicate posing as a local guide on Gabriela’s research team while simultaneously working undercover for a military organization trying to dismantle the aforementioned criminal syndicate.*
Although the novel briefly touches on Gabriela's work as a marine biologist, the story quickly pivots to her kidnapping and Matteo's covert rescue as the pair embark on a perilous trek through the Central American rainforest from Costa Rica into Panama.
The story contains some on-the-page violence and even more off-the-page violence. You have been warned, y'all.
There's rain and insects. (And a disappointing number of jaguars.) Because it's a tropical rainforest. It's kind of an ongoing thing. I don't want to reveal much more because Mist's tautly paced suspense is one of the story’s strengths. Once the story gains momentum, it doesn’t let up.
Although Gabriela is established early on as a domestic abuse survivor, that isn’t the defining feature of her character. Yes, she survives. Yes, she overcomes. But her core centers itself on living deeply and living well. She finds purpose and joy in her vocation, family, and friends. I'd like her in real life. Bet you would, too. She does have a few TSTL moments involving sexy times in high risk situations but I will forgive her those moments because limerence, high heat and sticky humidity can impair brain function. (I feel her cognitive dysfunction. I really do as I’m writing this review in a high-summer heat whilst sitting in a house with a broken HVAC system. The struggle is real.)
Matteo is every bit as likable as Gabriela. He's clearly exhausted by the violence and villainy permeating his world, yet he recognizes the role of desperation and circumstance in driving people toward despicable acts just as much as greed and selfishness can. Maintaining a soft heart in a hard world is a rare quality, but Matteo has it. It's what allows him to connect with Gabriela and ultimately risk everything to save her. It certainly doesn't hurt that ¡Matteo es muy guapo y fuerte! Love that for Gabriela.
This may be a controversial opinion, but I kind of dig Sally, too. She's scrappy. Her main man (there may or may not be some number side pieces on Sally’s plate) shows up with a Gabby-come-lately, and she still stands on her business, tries to protect her relationship and Matteo, and is unafraid to go after her dream of GTFO. Good for her. Alas, she's also kind of a sociopath, much like her father.** So it's difficult to be entirely #TeamSally. But I admire her grit and hope to read more about her in the future. She has potential as either a future anti-heroine or supervillain. And that’s not nothing.
Overall, Undercover Redemption is a fast, fun read with excellent pacing, engaging characters, and lots of suspense. Reno Mist is an enjoyable storyteller, and I'm genuinely looking forward to reading the next installment in the series.
*Poor Matteo, that’s a suffocating amount of work under multiple covers for a Central American field operative. The heat and humidity alone. Yeesh. Spoiler alert: By the end of the book, our man Matteo will be a triple threat. He’ll be a criminal syndicate man while undercover as a government operative while under deeper cover as a vigilantesque, supernatural Justice League agent…of sorts. But by the very end he will not be stuck under any more covers and will be affiliated with only one of said groups. I bet you can guess which one! Thankfully, Matteo is a man who works well under any number of covers and in steamy situations. ¡Ay de mí, Matteo, ay de mí!
**Sally’s dad is a real treat if that treat tastes of poison and is made with strychnine. No one deserves to be feasted upon by carrion eaters and slowly redeposited onto a rich, loamy Central American jungle floor more than this guy.
This entire review has been hidden because of spoilers.
Review of advance copy received from Author
ARC Review of Undercover Redemption by Reno R. Mist:
"She looked closely at Mateo, at the man standing beside her, who had always seemed to belong to the sea and the sand and the whisper of the palm trees, and saw him at last for what he truly was. Dangerous."
Undercover Redemption follows Gabriella, a recently divorced marine biologist studying sea turtles, and Mateo, a man she works with but is anything but who he says he is. Unknowingly, she stumbles onto patterns bad people wish she hadn't. Being held hostage by the man she thought she knew, our MCs delve into the jungle, into their pasts and towards an uncertain future.
“I didn’t understand before,” she murmured. “How strong you are … how you always come back.”
She hadn’t truly found a place in life nor appreciated it. Too trapped in her memories of a broken, failed marriage. It wasn’t until her life hung on the cusp of death that she had learned to fly again."
This is a fast paced, multi POV story about finding out who you are after the hard times happen; of not letting those times define who you are. Taking back control of who you want to be. Although this is fast paced, jumping into the action right away, it is well written. Not lacking in descriptions or world building even with the pace of the book. You can feel the humidity in the air, mixed with the right amount of tension. The taste of the salt spray from the ocean, hear the wild life as you rush through the jungle. Smell the sweat and fear.
While not my typical read, Undercover Redemption is a good, solid military-type romance with just the right amount of sass, spice and tension. Not just between characters, but also internal dialog that had me laughing out loud. It flows well and never let's you linger long before it pulls you into the next set of circumstances and emotions.
I want to thank the author for allowing me to be an early part of this book's journey and for trusting my opinions of it. Undercover Redemption is the first book in a series, and will be released soon.
"She looked closely at Mateo, at the man standing beside her, who had always seemed to belong to the sea and the sand and the whisper of the palm trees, and saw him at last for what he truly was. Dangerous."
Undercover Redemption follows Gabriella, a recently divorced marine biologist studying sea turtles, and Mateo, a man she works with but is anything but who he says he is. Unknowingly, she stumbles onto patterns bad people wish she hadn't. Being held hostage by the man she thought she knew, our MCs delve into the jungle, into their pasts and towards an uncertain future.
“I didn’t understand before,” she murmured. “How strong you are … how you always come back.”
She hadn’t truly found a place in life nor appreciated it. Too trapped in her memories of a broken, failed marriage. It wasn’t until her life hung on the cusp of death that she had learned to fly again."
This is a fast paced, multi POV story about finding out who you are after the hard times happen; of not letting those times define who you are. Taking back control of who you want to be. Although this is fast paced, jumping into the action right away, it is well written. Not lacking in descriptions or world building even with the pace of the book. You can feel the humidity in the air, mixed with the right amount of tension. The taste of the salt spray from the ocean, hear the wild life as you rush through the jungle. Smell the sweat and fear.
While not my typical read, Undercover Redemption is a good, solid military-type romance with just the right amount of sass, spice and tension. Not just between characters, but also internal dialog that had me laughing out loud. It flows well and never let's you linger long before it pulls you into the next set of circumstances and emotions.
I want to thank the author for allowing me to be an early part of this book's journey and for trusting my opinions of it. Undercover Redemption is the first book in a series, and will be released soon.
Review of advance copy received from Author
Thank you to author Reno Mist for sending this ARC for review consideration. All opinions are my own.
***
I loved the premise of the book and definitely looking forward to the rest of the series.
At first I found it a little hard in the opening of the story and the first couple of pages as the author was describing the FMC’s work. This maybe because I didn’t have a vested interest in turtles. But not to worry as the book isn’t all about turtles!
The author writes the book from a third-person perspective & is quite descriptive on the topics at hand, which allowed the reader to really feel like they were there with the characters, their discomfort and their emotions.
We have both strong leads who give out heavy smexy tension throughout the book and the OW drama was completely believable, wasn’t OTT or gave you the usual angst when an OW is involved. From the way it was written the reader gets to understand their actions stem from being a product of their environment.
The back story of the FMC is quite intriguing which we only get glimpses of throughout the book, which gave you enough to understand her hang ups. I loved how the author wrote her inner turmoil about her feelings for the MMC, and also the chaos in the MMC mind about his betrayal.
I enjoyed the ending but wished we got a little bit more. The epilogue sets us up for the rest of the series 🙏
I really liked the callback at the end of the book!
***
I loved the premise of the book and definitely looking forward to the rest of the series.
At first I found it a little hard in the opening of the story and the first couple of pages as the author was describing the FMC’s work. This maybe because I didn’t have a vested interest in turtles. But not to worry as the book isn’t all about turtles!
The author writes the book from a third-person perspective & is quite descriptive on the topics at hand, which allowed the reader to really feel like they were there with the characters, their discomfort and their emotions.
We have both strong leads who give out heavy smexy tension throughout the book and the OW drama was completely believable, wasn’t OTT or gave you the usual angst when an OW is involved. From the way it was written the reader gets to understand their actions stem from being a product of their environment.
The back story of the FMC is quite intriguing which we only get glimpses of throughout the book, which gave you enough to understand her hang ups. I loved how the author wrote her inner turmoil about her feelings for the MMC, and also the chaos in the MMC mind about his betrayal.
I enjoyed the ending but wished we got a little bit more. The epilogue sets us up for the rest of the series 🙏
I really liked the callback at the end of the book!
Review of advance copy received from Author
This story hits the ground running with the action taking off and evolving into a frenetic and intriguing tale that had me wanting more. There are themes of past betrayal and abuse by an ex, attempted physical and emotional damage, angst and drama but it culminated in a hard-fought HEA for the two main characters.
Gabriella is a divorced Marine Biologist studying the breeding habits of turtles in Costa Rica and finally living a life she chooses for herself in the aftermath of her ex’s betrayal. There is a team of scientists working around her and one particular man who takes her breath away. But in the chaotic fallout of a smuggling ring going wrong, she has to decide if her man is truthful and can be trusted or has she made the wrong choice again.
Mateo is ex military and now a part of a team of the good/bad guys, undercover on a mission to gain access to the company controlling the smuggling operation and that has ties to a slew of other dangerous projects. The last thing he expected was to fall in love with a marine biologist and it will take every ounce of his will and determination to protect her and keep her safe in the face of insurmountable odds.
The tale radiates with tension when Mateo apparently takes Gabriella hostage and tries to play the game whilst keeping her safe from harm and unaware of his undercover job. There is action aplenty, good interaction with side characters and the story weaves and flows as all the drama pulls towards an enjoyable and satisfying end.
I have thoroughly enjoyed the hours of respite this reading has gifted me and thank the author for giving me the opportunity to enjoy the arc and provide my voluntary review.
Gabriella is a divorced Marine Biologist studying the breeding habits of turtles in Costa Rica and finally living a life she chooses for herself in the aftermath of her ex’s betrayal. There is a team of scientists working around her and one particular man who takes her breath away. But in the chaotic fallout of a smuggling ring going wrong, she has to decide if her man is truthful and can be trusted or has she made the wrong choice again.
Mateo is ex military and now a part of a team of the good/bad guys, undercover on a mission to gain access to the company controlling the smuggling operation and that has ties to a slew of other dangerous projects. The last thing he expected was to fall in love with a marine biologist and it will take every ounce of his will and determination to protect her and keep her safe in the face of insurmountable odds.
The tale radiates with tension when Mateo apparently takes Gabriella hostage and tries to play the game whilst keeping her safe from harm and unaware of his undercover job. There is action aplenty, good interaction with side characters and the story weaves and flows as all the drama pulls towards an enjoyable and satisfying end.
I have thoroughly enjoyed the hours of respite this reading has gifted me and thank the author for giving me the opportunity to enjoy the arc and provide my voluntary review.
July 15, 2026
I really enjoyed reading Undercover Redemption by Reno R. Mist. This is the second book I’ve read by this author, and I was excited to dive into another story.
The novel follows Gabriella, a marine biologist dedicated to studying and protecting sea turtles from poachers. Recently divorced, Gabriella is slowly learning to trust again and begins to wonder if her friendship with her colleague, Mateo, could become something more. What she doesn’t expect is to discover that Mateo has a secret identity.
One of my favorite aspects of this book was that the FMC is a woman in her 30s, which made her easy for me to relate to. After enduring a toxic marriage, Gabriella doubts her own judgment and struggles to balance what her head is telling her with what her heart is feeling. Mateo is protective, caring, and mysterious, making him an intriguing love interest.
The romance definitely brings the spice! I especially enjoyed an intimate moment where the characters might be overheard or get caught. (Don’t want to give too much away!)
I also loved Sally’s character. She turned out to be much more complex than she initially appeared, and I really appreciated the depth her storyline added. The book wraps up with a satisfying happily-ever-after while also hinting that there’s more to come.
I recommend Undercover Redemption to readers who enjoy romantic suspense with compelling characters, plenty of chemistry, and just the right amount of spice.
The novel follows Gabriella, a marine biologist dedicated to studying and protecting sea turtles from poachers. Recently divorced, Gabriella is slowly learning to trust again and begins to wonder if her friendship with her colleague, Mateo, could become something more. What she doesn’t expect is to discover that Mateo has a secret identity.
One of my favorite aspects of this book was that the FMC is a woman in her 30s, which made her easy for me to relate to. After enduring a toxic marriage, Gabriella doubts her own judgment and struggles to balance what her head is telling her with what her heart is feeling. Mateo is protective, caring, and mysterious, making him an intriguing love interest.
The romance definitely brings the spice! I especially enjoyed an intimate moment where the characters might be overheard or get caught. (Don’t want to give too much away!)
I also loved Sally’s character. She turned out to be much more complex than she initially appeared, and I really appreciated the depth her storyline added. The book wraps up with a satisfying happily-ever-after while also hinting that there’s more to come.
I recommend Undercover Redemption to readers who enjoy romantic suspense with compelling characters, plenty of chemistry, and just the right amount of spice.
June 26, 2026
This book is a bit different than what I usually read. But my last Reno R. Mist book was phenomenal so I was excited to get out of my comfort zone a little. It did take me a second to get into, as the beginning was a lot of
describing the FMCs job in depth. I wasn’t sure I was going to be interested in that. But that doesn’t last long and then the story really takes off.
It is fast paced, but still manages to be very descriptive of the environment and situation these characters find themselves in. Mist continues to have superb writing with amazing imagery.
The dual POV gives us very different information for the same situation and allowed us as readers to get to know both the FMC and MMC intimately in such a short time. Their tension and yearning was palpable. Plus the yummy spice wasn’t too bad to read either hehe.
Though I enjoyed it, the concept did feel a little unrealistic and the inclusion of the mafia felt very random. I don’t think it was needed although I’m sure it will come up again later in the series. But we didn’t get any info on the FMCs mafia cousins, then suddenly they are facilitating her rescue?
Though I enjoyed the fast pace of this book, I do feel like the ending was a bit vague and rushed. We had a 1 year time jump with little information. I just wish I got a bit more at the ending, but it sets up for a lot of potential future books in the series.
Overall, this was a fun quick read with fun spice, a beautiful setting, and an MMC and FMC that have an intense bond leading the story.
Spice: 🌶️🌶️
Tropes:
🐢Marine Biologist x Poacher
🐢Captor x Captive
🐢Mafia/Poachers
🐢False Identity/Undercover
🐢Overcoming Trauma
🐢Betrayal
describing the FMCs job in depth. I wasn’t sure I was going to be interested in that. But that doesn’t last long and then the story really takes off.
It is fast paced, but still manages to be very descriptive of the environment and situation these characters find themselves in. Mist continues to have superb writing with amazing imagery.
The dual POV gives us very different information for the same situation and allowed us as readers to get to know both the FMC and MMC intimately in such a short time. Their tension and yearning was palpable. Plus the yummy spice wasn’t too bad to read either hehe.
Though I enjoyed it, the concept did feel a little unrealistic and the inclusion of the mafia felt very random. I don’t think it was needed although I’m sure it will come up again later in the series. But we didn’t get any info on the FMCs mafia cousins, then suddenly they are facilitating her rescue?
Though I enjoyed the fast pace of this book, I do feel like the ending was a bit vague and rushed. We had a 1 year time jump with little information. I just wish I got a bit more at the ending, but it sets up for a lot of potential future books in the series.
Overall, this was a fun quick read with fun spice, a beautiful setting, and an MMC and FMC that have an intense bond leading the story.
Spice: 🌶️🌶️
Tropes:
🐢Marine Biologist x Poacher
🐢Captor x Captive
🐢Mafia/Poachers
🐢False Identity/Undercover
🐢Overcoming Trauma
🐢Betrayal
Review of advance copy received from Author
*Military
*Later in life
*Betrayal
*Tension
*Action
*OW drama
*Redemption
Heroine, Gabriella, a recently divorcee and a marine biologist, ends up to a turtle research in Costa Rica along with some fellow researchers, amongst them the hero, Mateo. Until one night brings chaos upon them and Mateo grabs her literally to flee the scene. But Mateo isn't what he seems and Gabriella isn't sure what to believe anymore.
I loved Gabriella and how strong she was despite her hurtful past with her ex husband. Trust isn't easy for her but still she trusts when her brain tells her not.
Mateo is a dangerous, handsome man who has set his eyes on Gabriella and has to make a very difficult choice in his life. I liked how protective and possessive he was to Gabriella and how he was willing to burn everything to the ground in order to save her.
The story is very quick-paced and there's action in it and a lot of tension. The writing was smooth but it was quite awkward for me the ending. It felt somewhat abrupt. But overall I enjoyed it very much,
I received this arc and this is my honest opinion.
*Later in life
*Betrayal
*Tension
*Action
*OW drama
*Redemption
Heroine, Gabriella, a recently divorcee and a marine biologist, ends up to a turtle research in Costa Rica along with some fellow researchers, amongst them the hero, Mateo. Until one night brings chaos upon them and Mateo grabs her literally to flee the scene. But Mateo isn't what he seems and Gabriella isn't sure what to believe anymore.
I loved Gabriella and how strong she was despite her hurtful past with her ex husband. Trust isn't easy for her but still she trusts when her brain tells her not.
Mateo is a dangerous, handsome man who has set his eyes on Gabriella and has to make a very difficult choice in his life. I liked how protective and possessive he was to Gabriella and how he was willing to burn everything to the ground in order to save her.
The story is very quick-paced and there's action in it and a lot of tension. The writing was smooth but it was quite awkward for me the ending. It felt somewhat abrupt. But overall I enjoyed it very much,
I received this arc and this is my honest opinion.
Review of advance copy received from Author
First and foremost, thank you Reno for giving me the privilege to read this before release! I am truly grateful.
This is completely different from what I normally read. I'm not an huge military read kinda girlie but it was surprisingly really good.
The beginning we are immersed into our FMC, Gabriella's line of work of trying to save the turtles and taking notes on everything that goes on. Shes a marine biologist. We quickly move out of that and the action starts.
Nothing is quite as it seems for Gabriella when things take a turn and she is held hostage by who she thought was a friendly coworker/scientist, Matteo, our MMC.
Although this is a very fast paced book, we really get a lot of detail in our world building and you can picture everything quite vividly. It is written really well.
We get a dual POV so we know whats going on in both of MCs head and we get to know them pretty well too. The tension and the yearning are 🤌🏽🤌🏽🤌🏽 the spice is even better. 🔥
The ending seemed a bit rushed, but overall it was a great gread.
This is completely different from what I normally read. I'm not an huge military read kinda girlie but it was surprisingly really good.
The beginning we are immersed into our FMC, Gabriella's line of work of trying to save the turtles and taking notes on everything that goes on. Shes a marine biologist. We quickly move out of that and the action starts.
Nothing is quite as it seems for Gabriella when things take a turn and she is held hostage by who she thought was a friendly coworker/scientist, Matteo, our MMC.
Although this is a very fast paced book, we really get a lot of detail in our world building and you can picture everything quite vividly. It is written really well.
We get a dual POV so we know whats going on in both of MCs head and we get to know them pretty well too. The tension and the yearning are 🤌🏽🤌🏽🤌🏽 the spice is even better. 🔥
The ending seemed a bit rushed, but overall it was a great gread.
Review of advance copy received from Author
3.5 stars
Sentinels Of The Veil: Mateo and Gabriella
This hooks you at the start.
I know I certainly wondered whether I was insane to think that Mateo was the MMC…
He was protective, then not… and he was a bit TSTL at times.
Sure, let the wannabe OW that you have history with look after her in a camp full of men that want her… especially after said OW propositioned you and made it clear she wants in your bed again.
Betrayals, OW drama, action, suspense, surprise twists… It’s pulse-pounding action, and will likely confuse you to begin with before you wrap your head around the twists.
I wasn’t fully happy with the way their story wrapped up. It felt a bit vague, and I can’t honestly believe that he didn’t do anything with Sally during their separation. Plus the way that allegiences changed (and subsequent relationships) just felt very abrupt.
Overall, an enjoyable and suspense-filled story, but the finishing touches for me were a bit lacking.
Sentinels Of The Veil: Mateo and Gabriella
This hooks you at the start.
I know I certainly wondered whether I was insane to think that Mateo was the MMC…
He was protective, then not… and he was a bit TSTL at times.
Sure, let the wannabe OW that you have history with look after her in a camp full of men that want her… especially after said OW propositioned you and made it clear she wants in your bed again.
Betrayals, OW drama, action, suspense, surprise twists… It’s pulse-pounding action, and will likely confuse you to begin with before you wrap your head around the twists.
I wasn’t fully happy with the way their story wrapped up. It felt a bit vague, and I can’t honestly believe that he didn’t do anything with Sally during their separation. Plus the way that allegiences changed (and subsequent relationships) just felt very abrupt.
Overall, an enjoyable and suspense-filled story, but the finishing touches for me were a bit lacking.
Review of advance copy received from Author
Thank you so much Reno R. Mist for trusting me with an ARC copy.
I loved that the FMC was in her thirties, divorced, and got herself out of a toxic relationship. He became a biologist and while working on the field she met Mateo, who is undercover with a mission to bring down an organization, with whom she falls in love with. Mateo also fell in love with Gabriella and now Mateo needs to keep Gabriella safe. Something that resonated a lot was Gabriella’s bug fobia 🤣 while they were in the jungle. I am not a bug person, I have learned to tolerate them but that is probably why I don’t enjoy summer as much 😅.
Now, at the end of the book we went from present to a time jump of 1 year, and that let me feeling wanting to know more of what happened during that year, like we get a glimpse/summary, but I was left with questions! So I can’t wait to see where the other books go with this story and maybe I get answers to my questions? 👀.
I loved that the FMC was in her thirties, divorced, and got herself out of a toxic relationship. He became a biologist and while working on the field she met Mateo, who is undercover with a mission to bring down an organization, with whom she falls in love with. Mateo also fell in love with Gabriella and now Mateo needs to keep Gabriella safe. Something that resonated a lot was Gabriella’s bug fobia 🤣 while they were in the jungle. I am not a bug person, I have learned to tolerate them but that is probably why I don’t enjoy summer as much 😅.
Now, at the end of the book we went from present to a time jump of 1 year, and that let me feeling wanting to know more of what happened during that year, like we get a glimpse/summary, but I was left with questions! So I can’t wait to see where the other books go with this story and maybe I get answers to my questions? 👀.
July 26, 2026
What a wild ride! My heart rate was of the charges! Still is!
This was like an action movie. You have spice, yerning, tension, betrayals, fights, i mean this has it all! Then there is people you think you hate but then things happen and you don’t hate them anymore. I know!
Multiple little plot twist and scenes where you will gasph out loud! Those where very thrilling! And oh my, my poor heart..
I loved Mateo, but kinda was mad at him few times! I know why he didn’t tell but i would have been so mad! But he is so hot and caring that you just forgive him and understand him.
Gabriella, oh that sweet woman! Her you just wanna hug and make everything bad go away.
There is few characters that i would love to fed to sharks, this book doesn’t have sharks tho. But there is turtles! And they are so beautiful, full of grace and oh so so beautiful!
That ending! That left you wanting more! Like really need to get more, now..
This was like an action movie. You have spice, yerning, tension, betrayals, fights, i mean this has it all! Then there is people you think you hate but then things happen and you don’t hate them anymore. I know!
Multiple little plot twist and scenes where you will gasph out loud! Those where very thrilling! And oh my, my poor heart..
I loved Mateo, but kinda was mad at him few times! I know why he didn’t tell but i would have been so mad! But he is so hot and caring that you just forgive him and understand him.
Gabriella, oh that sweet woman! Her you just wanna hug and make everything bad go away.
There is few characters that i would love to fed to sharks, this book doesn’t have sharks tho. But there is turtles! And they are so beautiful, full of grace and oh so so beautiful!
That ending! That left you wanting more! Like really need to get more, now..
Review of advance copy received from Author
This book get straight into the nitty gritty and at times my head was spinning.
Mateo is a flawed hero and make no mistake about it there are times you are really not going to like him at all. He runs hot then cold then hot again.
There are more betrayals then you can count and the other woman drama is perfect. There is plenty of action as well and that makes for a fast paced read that is going to have the pages turning.
Gabriella is recently divorced and has a lot of hang ups, we only get snippets of her back story but there is enough there to know why she act the way that she does.
Mist has clearly done her research for this one and I really appreciated that while reading. I loved the fact the MC’s were in the 30’s and dealing with real life issues.
Ultimately this is a compelling read.
Review of advance copy received from Author
* Military
* Later in life
* HEA
* currently standalone
* Touch her and die vibes
* FMC Gabriella x MMC Mateo
What do you do when you are assigned as an undercover operative to infiltrate a smuggling ring? You fall in love with a marine biologist with a fear of bugs who is focused on conserving sea turtles, but accidentally stumbled upon smuggling lines without realising. That's the life mateo leads and the ending showed it would be a life he wouldn't exchange.
This isn't a typical book id read but definitely enjoyed the premise and the characters. This was a great start in this series and I predict that the next books will be even better there are quite a few side characters who are clearly going to be in the next storylines so excited to see that come about.
Favourite quote:
“I would sacrifice the lives of a thousand men to keep you safe.”
* Later in life
* HEA
* currently standalone
* Touch her and die vibes
* FMC Gabriella x MMC Mateo
What do you do when you are assigned as an undercover operative to infiltrate a smuggling ring? You fall in love with a marine biologist with a fear of bugs who is focused on conserving sea turtles, but accidentally stumbled upon smuggling lines without realising. That's the life mateo leads and the ending showed it would be a life he wouldn't exchange.
This isn't a typical book id read but definitely enjoyed the premise and the characters. This was a great start in this series and I predict that the next books will be even better there are quite a few side characters who are clearly going to be in the next storylines so excited to see that come about.
Favourite quote:
“I would sacrifice the lives of a thousand men to keep you safe.”
Review of advance copy received from Author
"This is a fast-paced, spicy dark romance that I absolutely devoured.
Gabriella and Mateo are sooo good together. I loved their back and forth banter throughout the story. And their chemistry is ELECTRIC!
Gabriella is a scientist located in a remote National Park studying and tracking endangered sea turtles. Mateo is an undercover operative sent to infiltrate the poaching network targeting the turtles that Gabriella is trying to save. Being in the wrong place at the wrong time, leads the two on a wild adventure through the jungle - where they not only have to survive the criminals hunting them, but also the dangerous spark between them.
I loved every second of this story! The characters are complex and fun to read, the dialogue was amazing, and the spice was definitely spicing!
Thank you to Reno for the opportunity to read and review this book!"
Gabriella and Mateo are sooo good together. I loved their back and forth banter throughout the story. And their chemistry is ELECTRIC!
Gabriella is a scientist located in a remote National Park studying and tracking endangered sea turtles. Mateo is an undercover operative sent to infiltrate the poaching network targeting the turtles that Gabriella is trying to save. Being in the wrong place at the wrong time, leads the two on a wild adventure through the jungle - where they not only have to survive the criminals hunting them, but also the dangerous spark between them.
I loved every second of this story! The characters are complex and fun to read, the dialogue was amazing, and the spice was definitely spicing!
Thank you to Reno for the opportunity to read and review this book!"
July 14, 2026
The book cover was captivating, and it was an eye candy. it was a steamy page turner, and the suspense was so intense and dangerous. I was hooked and these characters were to be forbidden lovers, and it became something real and more chaos and romance with a hint of intimacy in the mix between these two. Gabriella and Mateo chemistry were spicy like on a hot day of firework on the 4th of July day I was on the edge of my seat, and I couldn't even put it down literacy. I absolutely devoured this story, and I can't wait to find out what will happen next for this couple.
I highly recommend this book, and you won't be disappointed. I received advance copy of this book via Bookfunnel and am voluntarily leaving my honest review. Trina Jones
I highly recommend this book, and you won't be disappointed. I received advance copy of this book via Bookfunnel and am voluntarily leaving my honest review. Trina Jones
July 17, 2026
This is the second book I’ve read by this author. Within the first two chapters I was hooked. I love it that she gets right to it from chapter one. Overall, it was well written and I enjoyed the twists and turns. The FMC and MMC were likable.
The only reason I gave it a 4 is because she has some dialogue in Spanish that needed edits. I know it’s not her first language and if I didn’t speak Spanish it probably wouldn’t bother me but I do and it was a little bit of a hurdle to get through those parts.
Side note: when I finished the book, I had an overwhelming need to save the turtles - iykyk.
The only reason I gave it a 4 is because she has some dialogue in Spanish that needed edits. I know it’s not her first language and if I didn’t speak Spanish it probably wouldn’t bother me but I do and it was a little bit of a hurdle to get through those parts.
Side note: when I finished the book, I had an overwhelming need to save the turtles - iykyk.
Review of advance copy received from Author
Wow! I absolutely loved the story of Gabriella and Mateo. Gabriella is recently divorced and out of abusive marriage. Mateo is working undercover. He needed to protect Gabriella when her research exposed poachers and made her target. Falling in love with her was never in his plan but he did fall in love with her. And protected her in every possible way. Gabriella thought she was weak but she was anything but that. I was so rooting for their hea and loved it when they finally found their way to each other.
Review of advance copy received from Author
Gabriella is a marine biologist studying nesting sea turtles and healing after a divorce. Mateo unfortunately is an undercover agent targeting those that poach sea turtles. Certainly not a potential match that you would suspect to flourish.
Poachers attack while Gabriella is working, so Mateo grabs her and runs to safety. He has to make hard decisions in a tense situation but ultimately, he wanted to protect Gabriella in that moment.
This was a fast-paced story with angst, danger, secrets, OW drama, and plot twists that keep you guessing. It was nice to read about an older MFC.
Poachers attack while Gabriella is working, so Mateo grabs her and runs to safety. He has to make hard decisions in a tense situation but ultimately, he wanted to protect Gabriella in that moment.
This was a fast-paced story with angst, danger, secrets, OW drama, and plot twists that keep you guessing. It was nice to read about an older MFC.
July 14, 2026
This is my second Reno Mist book - and let me tell you SHE CAN DO NO WRONG.
Her books are fast paced and full of action, while also being so well written and full of perfect world building. The story is all consuming and was easy for me to devour in one sitting!
Undercover Redemption is a military romance about finding yourself again, surviving abuse and learning to love again.
I LOVED the sassy banter and the hilarious inner dialouges. I love the duel POV and all the drama!
Another amazing book from Reno that is a must read!
Thank you to the author for the early copy of this book! 🫶🫶
Her books are fast paced and full of action, while also being so well written and full of perfect world building. The story is all consuming and was easy for me to devour in one sitting!
Undercover Redemption is a military romance about finding yourself again, surviving abuse and learning to love again.
I LOVED the sassy banter and the hilarious inner dialouges. I love the duel POV and all the drama!
Another amazing book from Reno that is a must read!
Thank you to the author for the early copy of this book! 🫶🫶
Review of advance copy received from Author
Thank you goes out to Reno Mist for letting me arc read this book. I am leaving this review on my own free will and honestly.
I really enjoyed this. The bond between the mmc and fmc was great. I loved the concept of this story. Characters and the world was so real. I loved the mmc so much and how he wasn't gonna let her go. Some really delicious spicy scenes. Really excited to see where this goes in the series
I really enjoyed this. The bond between the mmc and fmc was great. I loved the concept of this story. Characters and the world was so real. I loved the mmc so much and how he wasn't gonna let her go. Some really delicious spicy scenes. Really excited to see where this goes in the series
Review of advance copy received from Author
I received an ARC of this book from the author and am leaving a review because I thoroughly enjoyed it. This book was fast-paced and action packed. I was on the edge of my seat, biting my nails throughout the whole book. I could feel the tension, the exhaustion. Dual POV was really fun to read. I do have lots of questions about what happens to some side characters… My only wish was for another epilogue for the main characters!
July 15, 2026
OVERALL: ★★★☆☆ (3/5)
PLOT: ★★★☆☆ (3/5)
CHARACTERS: ★★★☆☆ (3/5)
WORLD BUILDING: ★★★☆☆ (3/5)
SPICE: ★★☆☆☆ (2/5)
ENDING: ★★★☆☆ (3/5)
This was a quick, easy read, but unfortunately it just didn't leave much of an impression on me. I appreciated that the FMC was an older woman, which was refreshing, but I never fully connected with the characters or the romance. It wasn't a bad story by any means—it just wasn't a memorable one for me.
PLOT: ★★★☆☆ (3/5)
CHARACTERS: ★★★☆☆ (3/5)
WORLD BUILDING: ★★★☆☆ (3/5)
SPICE: ★★☆☆☆ (2/5)
ENDING: ★★★☆☆ (3/5)
This was a quick, easy read, but unfortunately it just didn't leave much of an impression on me. I appreciated that the FMC was an older woman, which was refreshing, but I never fully connected with the characters or the romance. It wasn't a bad story by any means—it just wasn't a memorable one for me.
July 18, 2026
22% the BBS internal thoughts is pissing me off. I don’t get how your body responds to someone when you’ve quite literally just lost complete trust in them???
46% i’m honestly having a really hard time with the FMC. She seems to kind of stick her head in the sand. I mean Gabriella saw Mateo get kissed by someone else and then later in the night that same woman was in his lap. Instead of talking to him about this when they were alone, they just immediately start hooking up. After everything she went through with her cheating ex-husband I would think she would wanna clarify he’s not in a relationship with someone else.
79% Gabriella asked Mateo about the other woman. Now?!? NOW? Way to take your time.
Anyway both characters are in their forties. They meet it, Costa Rica where Gabriella is studying turtles. Mateo is the researcher group Gabriella is with. They form a friendship over the months. Then a group comes and kills everyone the day the turtles come to the beach to lay their eggs. Mateo escapes with Gabriella. But really Mateo is an undercover agent and knew the people that killed all the researchers. They travel through the jungle with his group of outlaws. They survived with the help of another agency group and then reunite a year later to be together.
46% i’m honestly having a really hard time with the FMC. She seems to kind of stick her head in the sand. I mean Gabriella saw Mateo get kissed by someone else and then later in the night that same woman was in his lap. Instead of talking to him about this when they were alone, they just immediately start hooking up. After everything she went through with her cheating ex-husband I would think she would wanna clarify he’s not in a relationship with someone else.
79% Gabriella asked Mateo about the other woman. Now?!? NOW? Way to take your time.
Anyway both characters are in their forties. They meet it, Costa Rica where Gabriella is studying turtles. Mateo is the researcher group Gabriella is with. They form a friendship over the months. Then a group comes and kills everyone the day the turtles come to the beach to lay their eggs. Mateo escapes with Gabriella. But really Mateo is an undercover agent and knew the people that killed all the researchers. They travel through the jungle with his group of outlaws. They survived with the help of another agency group and then reunite a year later to be together.
August 12, 2026
This was a good read. It picks up quickly from the beginning of the book. I practically binge read it. It was very catchy. Without giving spoilers, this book has great character growth and a strong storyline. There’s OW drama, hope, love, betrayal, plot twists, and an HEA. The only reason I’m not giving it 5 stars is because my greedy self (yes, I own it) wishes there was a long epilogue. It’s so good, I want more!
Review of advance copy received from Author
I received an advanced copy of this book and am leaving a voluntary review. Overall, I really enjoyed it. I would give it a 4.5 star. The character development was awesome. The only thing that made it -0.5 stars is the flow of the book got a little weird for me around the three-quarter mark. Overall, I do recommend it. I cannot wait for the next book in the series!
July 17, 2026
The action in here was great! I liked Mateo and Gabriella, but I am kind of mad she waited a while year before going back to Costa Rica to get closure and find out if he was alive. And he just let her go for a year. The ending with Gil felt a little "otherworldly" and I would love to see that explained.
July 21, 2026
I love spicy dark romance and Reno Mist never fails to give me that. Gabriella left an abuse marriage, when her research is exposed and she becomes a target, Mateo who is working undercover and needs to protect her from these people and it just takes off from there the love that comes from them wow!!! Definitely recommend this read!!!
Review of advance copy received from Author
I really enjoyed this book. I was able to read it’s as a ARC. The bond between the mmc and fmc was good. I liked the MMC and the chemistry between him and the fmc. Some really good spicy scenes. I’m excited to read more from this author.
Review of advance copy received from Indie Reviewers
I really enjoyed this book, and getting to read it early as an ARC made it even better. The MMC and FMC had a great bond with strong chemistry that carried the story. The MMC especially stood out, and the spicy scenes were a fun bonus. I’m excited to read more from this author.
July 16, 2026
Amazing book. I was privileged to get an arc and it was a great book. Fast-paced and you can't help but swoon over Mateo. I even felt some sympathy for the OW because of the situation she was in.
At some points I wondered if happily ever after would come but it did.
At some points I wondered if happily ever after would come but it did.
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