Dr. Isla Hart believes everything—even magic—has a scientific explanation. Her deep-sea expedition was meant to prove her father’s wild theories and finally earn her place in the scientific world. Instead, it ends in blood, ruin, and a rescue that feels more like captivity.
Now she’s trapped aboard The Nocturne, a luxury submarine crewed by vampires and powered by secrets. Among Sebastian Moreau. Elegant. Dangerous. Undead. And maddeningly interested in her research… and in her.
Sebastian didn’t trade breath for blood to be tethered to anyone. But Isla’s data might hold the key to an ancient power stirring in the trench—and her presence aboard The Nocturne is awakening something else, too. Something more ancient than vampires. Something in the deep.
The deeper they dive, the more Isla’s blood, her past, and the artifact she’s been chasing begin to rewrite her. The woman who boarded the ship may not be the one who surfaces.
On a ship where no one tells the truth and trust is a sinking currency, desire may be the most dangerous current of all. Perfect for fans of slow-burn paranormal romance, oceanic gothic adventure, and seductive danger with a bite of banter—closed-door, low-spice, slow burn intensity.
Vampires. Secrets. Science. Submarines. When Dr. Isla Hart embarks on a deep-sea expedition to prove her late father’s controversial theories, she doesn’t expect to end up captured aboard a vampire-crewed submarine. Especially not with Sebastian… elegant, undead, and infuriatingly intrigued by—not only her research—but Isla herself. Discoveries awaken something ancient and dangerous in the trench below, the line between myth and science blurs. As the ocean begins to rewrite her past and her future, Isla must navigate desire, deception, and a deadly power that may not let her surface at all… 🤯
Perfect for fans of oceanic gothic vibes, poetic prose, and slow-burn romance wrapped in supernatural danger.
⸻
Tropes & Vibes:
🌊 supernatural submarine 🧛♂️ brooding vampire love interest 🔬 science vs. magic 📖 found journals and cryptic research 💫 slow-burn romance 🔐 closed-door tension 🌌 ancient sea monsters 😱 trapped together 💔 past trauma & secrets 🎭 morally gray love interest 🕯️ gothic atmosphere 🧩 puzzle-like magic system 🪞 identity unraveling ⛓️ captivity meets curiosity 🔥 low spice, high tension
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My thoughts:
A.V. Wilcott’s writing is absolutely STUNNING—captivating, poetic, and immersive. From the very first chapter, I was completely pulled in.
Dr. Isla Hart is such a compelling protagonist. Her sharp scientific mind and determination to understand the unexplainable made her journey fascinating to follow. Watching her try to reason through a world of vampires and ancient oceanic power? So good. 🙌🏽
And then there’s Sebastian. Complex, dark, mysterious… and somehow magnetic. The dynamic between him and Isla simmers with tension, curiosity, and something deeper that’s still unfolding.
I also really loved the magic system, especially the mysterious symbols and Inky (who I’m slightly obsessed with). The way the ocean plays such an active, mystical role in the story was beautifully done.
I cannot wait for book two!
Some of my favorite lines:👇🏽
Isla looked from Sebastian's sardonic smile to Evangeline's icy disdain and concluded that she was caught between two predators playing very different games. And she still didn't know the rules.
"You think being saved is the same as being alive,"
“But it feels like forgetting. Like breathing through water.”
A beautiful cage was still a cage.
“How long will you be able to stay away? How long before the scientist gives way to the believer? Before you stop studying the monster… and start becoming one.”
The door closed behind him with a soft click that somehow felt more threatening than a slam.
And the further she descended into their world, the less useful science became. Its language frayed. Its equations blurred in the dark.
They weren’t predators closing in. They were apex hunters crossing into territory claimed by something older, deeper, and just as deadly. And for once, they weren’t certain they ranked higher.
His lips met hers with a touch that was more plea than possession, more worship than need. He kissed her like he was trying to remember who he was. Like her mouth might be the key to finding his way back.
The book starts out strong with the first chapter gripping my attention with a pirate attack on a science ship at sea. A rescue comes in the form of something even more dangerous. “A shadow sliced through the fog. Massive, sleek, silent as death.” And I am completely hooked before the next chapter is over.
What makes this book stand out isn’t just the premise, but A.V. Wilcott’s ability to move the plot forward while painting such vivid imagery you can taste the salt in the air and feel the weight of the fog pressing in. The prose is lush without being overwrought, gothic yet precise, and almost every page contains a line you could underline for its sheer beauty. Her descriptions layer sensory detail—light, sound, texture—so seamlessly into the action that even the quiet moments hum with tension.
Wilcott blends gothic romance, high-stakes sci-fi, and a supernatural thriller into something that feels both cinematic and claustrophobic. The “science meets magic” worldbuilding is clever and immersive—deep-sea research, advanced tech, and the lurking menace of immortal predators who rule the ocean’s shadows. There’s a constant undercurrent of danger, which sometimes tipped into panic-reading territory for me. I actually had to force myself to slow down because I didn’t want to miss a single detail in the tension-heavy sequences.
The romance here is a slow simmer rather than a heart-clutching emotional gut punch, but that worked for the story’s pacing. The dynamic between the lead scientist and the enigmatic vampire is built on wary necessity, mutual fascination, and just enough sharp banter to keep you rooting for them despite the inherent danger. There are no spicy scenes this round, but the tension is palpable.
Overall, Fangs & Fathoms delivers a moody, atmospheric start to a series that feels equal parts Crimson Peak and The Abyss. It’s the rare book where the setting feels as alive and dangerous as the characters themselves, and Wilcott’s prose is so rich in visual and emotional detail that you can sink into it like deep water (did you see what I did there?). If the next book builds on the world and sharpens the romantic payoff, it could easily become a must-read staple in the paranormal romance–sci-fi crossover niche.
Favorite Quotes from the first chapter! Enjoy the ride!:
“Her voice cracked the silence like a fault line. ‘If I die before I figure out what’s down there…’ she choked on the rest, then steadied. ‘I’ll haunt you,’ she threatened. ‘Every night. Every dive. You’ll feel me watching.’ A shaky inhale as their bodies rocked with a wave. ‘And God help you if you touch my research.’”
“The deck glistened with seawater and blood, the two liquids mingling into dark rivulets that snaked between the bodies.”
“‘Welcome aboard The Nocturne,’ he said, voice laced with mock hospitality. ‘First time on a vampire ship? Don’t worry, most of our guests survive the tour.’”
Vampires, humans, and mystical deep sea creatures.
This book was definitely unique! I enjoyed the world. It was eerie, dark, and we got to explore and uncover the mysteries of the dark depths of the ocean. The overall plot was interesting and there were several suspenseful moments that kept me on the edge of my seat. I really enjoyed the creatures in this story and the technology in this world.
I did find the writing style a bit distracting at times and it would pull me out of the story. The book is written in 3rd person but sometimes in 1st person. When switching between characters mid paragraph I would get confused who “he” or “she” was. Especially if there were several characters in a scene, I would get confused whose emotions were described on the page. But this definitely might be a me problem as I don’t typically read books in this writing style and prefer first person POVs.
I was disappointed in the progression of the romance. I didn’t mind the instant attraction between the main characters and I actually enjoyed the tension in the beginning. But I felt like the romance never developed or grew, they just kinda got together in the end?
Also, does Sebastian breathe or not? Asking for a friend.
Overall, I did enjoy the story. It was unique and suspenseful.
Thank you NetGalley and BooksGoSocial for the ARC!
I honestly didn’t know what to expect when I picked this one up, but I’m so glad I did. This is high-stakes sci-fi crossed with a supernatural thriller - a story that feels almost claustrophobic at times, exactly like being on a submarine, albeit a high-tech, living, breathing, vampire-controlled one.
The plot focus leans more toward adventure and exploration than romance, but when the romance appears, it might be low on spice but it’s tension-filled and comes with plenty of brooding from the main vampire love interest. The supernatural danger meshes perfectly with the crushing, unknowable depths of the ocean. And when moments of intimacy rise to the surface, they carry real emotional weight, like in this striking line:
“His lips met hers with a touch that was more plea than possession, more worship than need. He kissed her like he was trying to remember who he was. Like her mouth might be the key to finding his way back.”
A dark, immersive read for anyone who craves atmosphere, mystery, and the pull of the deep.
Thank you to the author and NetGalley for this eARC.
Review of free ARC from NetGalley, in exchange for an honest review.
3.5 stars, rounded up.
One of the most unique plotlines I have read this year, for sure.... deep sea scientific expedition, with pirates and sea-dwelling vampires, sea creatures, inanimate objects that are actually living creatures! It's not written in a confusing way, but it is confusing to explain because there are a lot of different themes.
I'm not a big fan of 3rd person writing. And, this one jumps around a bit, making it hard to distinguish who "she" or "he" is at times. The instant love type of thing also isn't the greatest.
Overall, it was a really good book that could use just a small bit of polishing up. Descriptions are very in-depth and very easy to visualize everything in this very different environment. I look forward to trying out the 2nd book once it's released.
The description said it’s a slow-burn. However, by page 20, the attraction and seduction has already started between the two main characters. This is the opposite of slow-burn. I want yearning. I want development. If it starts off this quickly, I’m not interested.
Premise of the story is cool though.
Also, the fmc, Isla, knew just by looking at the creatures that they were vampires. But like… I don’t have context for that? Isla said they were mythical creatures and then suddenly and oh so matter-of-factly she says “oh they’re obviously vampires.” So as the reader, I’m wildly confused.
thank you to netgalley and booksgosocial for providing me with this arc of a. v. wilcott’s fangs and fathoms
4.75 stars
i liked this book! i didn’t think i would because i’m not overly a romance reader but i was hooked right from the first chapter and was just as excited to read this as i would be a history book! highly recommend
✨Arc Review✨ Thank you to the author A.V Wilcott for sending me this digital ARC in exchange for an honest review.
Fangs and Fathoms is a spellbinding voyage into the deep—one that merges paranormal romance with a tender sense of wonder and quiet suspense. A.V. Wilcott invites readers into a world where the sea holds more than scientific marvels. It hums with secrets, sorrow, and the gentle pull of a love that unfolds like sunlight breaking through ocean fog.
The story follows marine biologist Isla Hart, a brilliant and determined scientist who dives into the abyss to chase her late father’s theories—and to uncover truths long buried beneath the waves. But what begins as a mission grounded in logic quickly veers into the uncanny. Isla is rescued by a vampire crew aboard an opulent submarine known as The Nocturne, and from there, her understanding of the world begins to unravel.
The atmosphere is dreamlike from the start. Wilcott writes with a soft, immersive quality that makes the ocean feel sacred and unknowable, full of beauty and danger in equal measure. The mood throughout is calm but charged, like the still surface of deep water hiding something ancient just beneath. It’s not a book that rushes—it invites you to sink, slowly, into its depths.
At the center of the story is Sebastian Moreau, the vampire commander of The Nocturne. His relationship with Isla is built with care—never forced, never hurried. Their chemistry is undeniable, but Wilcott doesn’t rely on instant attraction or melodrama. Instead, the connection between Isla and Sebastian grows organically through shared vulnerability, scientific curiosity, and the ever-present tension between predator and prey. Their dialogue is witty, introspective, and quietly intimate.
One of the book’s greatest strengths lies in the balance it strikes between romance and discovery. Isla is never just a love interest��she’s a woman of intellect and agency, fiercely devoted to her work and to the truth. Her scientific lens gives the novel a grounded perspective, even as she begins to accept the existence of creatures and forces that defy rational understanding. The blend of science and supernatural is handled with grace and originality.
There are, however, a few ripples in the calm. Some readers may find the pacing a bit slow, particularly in the middle, and the supporting characters—though intriguing—could have used more depth. Still, these are minor flaws in a narrative that prioritizes atmosphere, emotion, and immersive world-building over high-octane drama.
In the end, Fangs and Fathoms is a quietly breathtaking read. It's perfect for those who enjoy romantic tension without chaos, paranormal mystery without overexplanation, and an emotional arc that feels as vast and patient as the ocean itself.
🌊 Tropes in Fangs and Fathoms 🧛♂️
🧛♀️ Vampires but Make It Nautical – A vampire crew on a luxurious submarine? Yes, please.
🌊 Deep Sea Setting – The entire story takes place beneath the waves in a hauntingly beautiful oceanic world.
🧠 Scientist Heroine – Isla is a smart, capable marine biologist with logic as her compass.
🐚 Beauty and the Beast Vibes – A gentle, curious girl and a mysterious, dangerous immortal.
🕯️ Slow Burn Romance – Longing glances, quiet conversations, and tension that builds like a rising tide.
🔬 Science Meets Supernatural – Rational minds collide with myths and monsters.
🩸 “I Could Hurt You, But I Won’t” Energy – Sebastian is a predator... but never to her.
🗝️ Secrets from the Past – A missing father, a hidden legacy, and questions that echo through time.
🚫 Forbidden Attraction – Falling for someone you were never meant to meet, let alone trust.
🐙 Monsters of the Deep – Creatures lurk in the abyss, and not all of them are human.
🌫️ Gothic Underwater Aesthetic – Candlelit corridors, velvet shadows, and the hush of deepwater silence.
“Because sometimes, the dark sees you back. And it remembers.”
Dr. Isla Hart isn’t a fool; she knows how the world sees her: disgraced, incompetent, perhaps even a little crazy. Following a disaster at the Mariana Trench which left her the sole survivor of a scientific voyage, Dr. Hart embarks on yet another journey to the same exact place. She’s hunting for something that’s impossible - something hidden in the deep. Instead of finding it, however, vampires find her first.
This story follows what can be arguably described as an obsessed scientist and vampire pirates. I call them vampire pirates since their ship, the Nocturne, can quite literally fully submerge under the ocean to depth unimaginable and they sail the seas in mystery.
To start off, I liked how curious and brave the main character Isla is. She’s always on the hunt for answers and even when she logically knows she should be afraid, she doesn’t let that stop her from standing up for herself. Unfortunately, while I do think she is brave and bold with her tongue, there is quite a lack of action on her end. It feels like everything is just happening to her and she’s two dimensional in responding to it. I also didn’t love how her having a scientific mind was brought up almost every time she had a thought. Like yes, we know she has a scientific mind, that’s why she’s in the mess in the first place! I did like Sebastian, the main love interest, who’s a charming, mysterious vampire who needs Isla to help him find what’s in the deep. Their tension throughout this book is unmistakable. I wouldn’t classify this as a slow burn, however, like it is marketed. It is very much insta-love in my opinion. They are immediately drawn to each other within the first 5 chapters and feel an unworldly connection.
“Most people run from their nightmares. You chase yours.”
I really like the mystery aspects, the somewhat new magical anomalies in the world, and the overall darker vibes of the book. Without spoiling anything, I love the themes of blood throughout the book. It definitely gave me a spooky vibe.
This book is more focused on the character relationships instead of the actual plot or world building. There is a lot of poetic language used for the descriptions that help enhance it, but don’t do much to actually give an idea of what the author is trying to explain. For example, “Unlike Sebastian’s calculating menace or Evangeline’s frostbitten cruelty, this one radiated chaos barely bottled. Wildness masquerading as charm, danger with its feet up.” To clarify, I don’t think there is anything wrong with this or that it is a negative thing. It’s not my personal preference for books (I would prefer more substantive world building and direct descriptions) but I do think the language is quite beautiful.
Something I noticed is that the book can be a little repetitive. Within the first 4 chapters Caspian makes a joke about the ship not being hungry because it just ate and the author proceeds to bring it up 4 more times in the next chapter or so. Just repeatedly mentioning how specifically Caspian said the ship wasn’t hungry. The trend is followed through on different topics throughout the whole book. They are definitely repeated for a reason (emphasis, clues, etc.) but it felt overwhelming at times.
Overall, I think this is a great book but it wasn’t exactly tuned to my tastes. The overly flowy language, lack of world building and in depth characterization, and repetitive phrasing knocked the rating down for me a bit. That being said, I do strongly encourage you to pick this book up and try it. I can see how it would be amazing to someone who likes more character focused tense mysteries and poetic descriptions.
I came prepared to laugh at this because seriously? Vampires underwater? I was wrong because my word, it's STELLAR. The writing is absolutely lush, with descriptions that just SING. The word choice is as specific as poetry, and while it can be overmuch at times, it does the story justice. The genre different than what the blurb mentioned, as it's more of a sci-fi/fantasy thriller with a smidge of romance (more on that later) rather than a "paranormal romance adventure", but that's just my take. The story focuses more on the horrors of the deep, the obsessive call to explore the waves, and the dangers of playing with something you can never understand. I found it was actually quite inspiring in a religious sense, as it is clear there are things that are infinitely more powerful than even supernatural demons of the night, and thinking you can mess with it is an extreme act of hubris. Instead, it demands respect, reverence, and some healthy fear. It was the best depiction of underwater horror I've seen in a while. The story itself was a tad hard to follow, but I still appreciated its depth. The characters were well-written, clearly flawed but still admirable, and realistic in their traits. I loved how the vampires are clearly dangerous, not just from the main character saying so, but by showing how their actions and words scream it in every interaction. Dr. Hart deals with them fabulously, of course, but even she can't hide her fear from time to time. On the romance side, I can't say I was thrilled, as it was mostly tension/chemistry based. They do share some traits that make them amenable to each other, plus they need each other's expertise, but their attraction was purely physical. It didn't go beyond making out, thankfully, so it's still considered clean, but I wished they'd built up a quasi-friendship first. But I guess vampire allure is too distracting. Overall, this book was absolutely fabulous if you like a good underwater thriller (with a dash of horror) with some fantasy elements. I totally didn't expect it to be this good, but this may be one of my favorite reads this year. Would totally recommend!.
I received a free copy of this book and am voluntarily leaving a review.
🧛♂️⚓️ Vampires, a supernatural submarine, sea monsters and an ancient artifact—this book is unlike anything I’ve ever read! ⚓️🧛♂️
This book is truly unique.
It follows Dr. Isla Hart, a scientist on a deep-sea expedition to prove her father’s wild theories. But when her ship is attacked by pirates, salvation comes from an unexpected source: another ship… crewed entirely by vampires. Recognizing her knowledge and skills, the vampires kidnap Isla and force her to help them search for an ancient artifact hidden in the depths.
I’ve honestly never read a story that mixes science and magic in this way. It blends paranormal elements with metaphysics, and at times the magic feels almost psychological, which raised goosebumps more than once. At first, I was a little confused by how the two concepts intertwined, but the strangeness also kept me intrigued.
The plot is slow and evenly paced, which builds suspense. It keeps you on edge, never quite sure what’s going to happen next. Because it was unpredictable, I couldn’t stop reading—I was too invested to put it down.
The relationship between Isla and Sebastian is also a slow build. It isn’t insta-love, but there’s definitely an immediate intensity on his side (he is a vampire, after all). I did find myself slightly frustrated with Isla—while the narrative insists she’s “different” from other scientists, her constant denial of the paranormal and magical things happening around her made her reactions harder to believe. She was curious, yes, but her stubbornness sometimes pulled me out of the story.
That said, I still enjoyed this book for its originality and atmosphere. It was eerie, immersive, and left me curious about what’s to come.
Spice: ❌ None Rating: ⭐️⭐️⭐️
Tropes: ⚓️ Supernatural, gothic, somewhat sentient submarine 🧛 Vampires 💘 Vampire × Human 📜 Ancient artifact quest 🐙 Ancient sea monster 🤝 Forced proximity 🌑 Brooding MMC 🔥 Slow burn
Thank you NetGalley, BooksGoSocial, and A.V. Wilcott for this ARC! 💜
An immense gothic submarine, a mystery lurking in the depths of the ocean, and a beautiful, intense, aristocratic pirate vampire. What's not to love?
This was almost a five star read for me, but it left me very slightly unsatisfied, so I took a star off, but I'd call it a strong 4 star read.
Firstly, what I liked, and there was a lot to like!! The setting was amazing, the Nocturne sounds incredible, a lush, gothic castle, but in submarine form.
The pressure of the ocean and the confines of the setting really came through. The endlessness of the deep ocean and the horror of what could be lurking, just unseen. Very atmospheric.
I think this would make an excellent film. The visuals are so rich.
I liked the two main characters a lot. Isla was curious and courageous. Sebastian, elegant and conflicted. I would have liked to know a little more about Sebastian, his character could have been fleshed out a little more.
The plot was interesting and kept me reading. The story kept a good pace throughout.
I really wanted to give this five stars, but the reason I couldn't was because I felt like the two main characters, and the romance between them could have been developed a bit more. I feel like they missed a step between initial attraction, and being completely in love. I think what was there was good, but it skipped a step. It's not a deal breaker, but I so wish there was a little more there because I think this could have been one of my favourite books. It was so close. The concept is amazing. Vampire submarine pirates, it's so worth a read just for this!
I didn't mind the poetic language, I found it suited the tone of the book. Though I was somewhat annoyed by the repetition of some phrases and concepts. It wasn't frequent enough to become a real problem, but it pulled me out of the story a bit when I noticed it.
All in all, I would definitely recommend this book, and I'll be looking out for the next one! :)
This book was really not for me and the only reason I didn't DNF is because it was under 300 pages. I don't love overly descriptive language, and that's pretty much all this book was. There were entire paragraphs with no substance, and the descriptions started to get very distracting. How does light sigh like something ancient? What does it mean that it turned into something older than blood? I really just didn't get the writing style at all, and it got to the point that I started counting every time I read a repeated descriptive phrase.
Isla, our FMC, is not an active participant in this story; everything in the book happens to her. Isla really only makes 1 decision in the entire book, which happens in the last chapter. I pretty much only read books with strong FMCs, so again, this book was not meant for me.
This read like the author is not super familiar with science or was not comfortable using scientific terms. I specifically requested this ARC because I was excited for a FMC in STEM, but we don't actually know what she does. I assume she was supposed to be an oceanographer since the term physics was used so often, but all we know is that she looks at sonar maps and currents. The whole beginning conflict was that they were after her "data," but we never actually learned what that is, just anomalies in maps.
The plot was really interesting, and the monster seemed cool, but the majority of the focus was on romance, not plot. I would still recommend the book to people who like a damsel in distress and flowery language, I am just not that person.
Thank you to NetGalley and BooksGoSocial for the free eARC.
The POV shifts between Sebastian and Isla mid-scene, which leads to odd moments like this: “[...]the pale woman — Evangeline — appeared in the doorway.” Why would Sebastian think of Evangeline as “the pale woman” when he knows who she is, and is just as pale as she is? It’s choppy, and stands out in a bad way. There are also so many similes; one page there were six. And that’s just one page. It’s not that similes are bad, but when one page has half a dozen and the chapter nearly thirty, it begins to get a bit ridiculous.
Add to that constant repetition, and it makes me feel like the book doesn’t trust that I, the reader, will understand the complex thoughts like: Sebastian is studying Isla, who he studies like something to be studied as he studies Isla. Or, hey, this guy — this vampire guy? — is a vampire, and Isla knows he’s a vampire because he’s a predator who treats her like prey because vampires treat people like prey and he’s a vampire, this guy vampire.
For me, the writing got in the way of the story — which was vampires in a submarine hunting monsters in the depths of the ocean. I found the romance to be very overwritten, with even more similes and repetition and I ended up uninterested and underwhelmed. Isla is a blank puppet for readers to insert themselves into, the science is hinted at but never really revealed, and Sebastian is a vampire. However, the world building is interesting — and I am curious to see if the author, in future books, manages to be a little more confident in their writing.
Thank you to Net Galley and the publisher for the ARC.
This novel plunges readers into a thrilling paranormal romance that is as deep and mysterious as the ocean it explores.
The novel excels with its high-concept premise: a brilliant scientist, Dr Isla Hart, gets kidnapped by vampires aboard a sentient, living submarine.
The plot is a masterclass in pacing, blending high-stakes adventure, deep-sea horror, and a simmering romance between the pragmatic Isla and the enigmatic vampire Sebastian.
Wilcott’s writing is atmospheric and immersive, bringing the claustrophobic luxury of The Nocturne and the terror of the abyssal plain to life.
The character dynamics are the story’s anchor, in particular the tension between Isla’s scientific rationalism and Sebastian’s ancient, predatory nature.
While the romantic development occasionally feels swift under the extreme circumstances, the chemistry is undeniable and electric.
The lore, involving a mythical artifact and a god-like sea creature, feels fresh and inventive, elevating the novel beyond typical genre fare.
This is a captivating and imaginative adventure from start to finish.
Recommended for fans of paranormal romance, dark fantasy, and action-adventure stories.
Readers who enjoy unique settings, a “captor-to-lover” trope executed with depth, and a blend of science, magic, and mythology will find this book impossible to put down.
It’s a perfect read for anyone seeking a story that is both intellectual, engaging, and emotional.
I received an advance review copy for free, and I am leaving this review voluntarily
Fangs and Fathoms was my second ARC! I flew through the book in 2 sittings.
I was looking for something different and I feel like I got the jackpot with this one.
This book dives deep into the supernatural making you feel like Vampires are part of everyday life once you get introduced to new terms around deep-sea expoditions and god-like magic from 10,000 leagues under the sea!
I really enjoyed meeting the characters, even though I knew this was a slow burn, I expected a lot more to happen😭 This is a romance book but it takes a back seat to the main story of adventure and exploration. More romance would have gotten 5 stars for me.
There are some slower parts of the book that I feel like could have been wrapped up in the middle of previous chapters rather than giving them their own full chapter to play out.
Sebastian and Isla have a very interesting relationship and I found myself excited to see them come together in different situations throughout the story. If you love vampires, you're going to love Sebastian.
The magic in this book was tough to picture at points but if you stick with it, it all becomes a lot clearer in the end!
This was quite a twist from my recent reads. I have always been a fan of vampires and other paranormal beings. I am also a fan of pirates, never really thought about both together but wowza. This was so much fun to read, a world of intrigue that takes place in the wide expanse of the seas. The plot is strong in this novel with great world building. I love how creative this concept was. Trying to stay vague so as not to spoil the adventure you will embark on when you read this incredible story.
Dr. Hart really had a tough go of it. It isn't easy on a good day but to have her luck. I felt bad for her at first but she was able to take part in a huge adventure. Thank you Sebastian, I wasn't sure what to think of him at first but this slow burn story really kept me on my toes, from the adventure as well as the slow and steady romance that formed between these two weary beings.
I really enjoyed the different creatures that we were able to explore with this journey. I loved how we get such different perspective on the good and the bad who or what is truly evil and learning who we really are.
The character growth was great individually and as a pair.
Scorned by the academic world, Dr. Isla Hart is determined to continue her father's research in the mysterious phenomena lurking deep within the ocean. When her research vessel is attacked by pirates in search of her research notes, she finds herself captured by vampires on a luxury submarine that defies the laws of physics. The vampires want to use Isla's research for their own search for the same mysterious artifact that her father died searching for. But as their search closes in on the artifact, they awaken something even more dangerous than vampires.
Fangs and Fathoms is a fantastically creative story that I couldn't put down. Isla is a severely analytical person, using her scientific knowledge and observations to make sense of an increasingly magical and science-defying world. As she continues to confront the unknown, she also has to come to grips with the changes within herself, leading to an interesting commentary on what makes a monster and what makes one human.
An amazing read that explores the cost of knowledge and the ways the truth can change you.
I received an advance review copy for free, and I am leaving this review voluntarily.
A wildly inventive take on vampire lore, with a cephalogod and one unforgettable heroine.
I received an advance review copy of Fangs and Fathoms for free through BookSirens, and I can’t stop thinking about it. I’ve officially entered my pirate vampire era. I couldn't put it down.
This book is a bit dark, clever, and very immersive. Dr. Isla Hart is a headstrong scientist with a lot to prove and even more to survive. When her ship is boarded by pirates and she’s taken by a crew of vampires aboard a submarine (yes, really, and it worked so well for me), things spiral into a gorgeously bizarre mix of deep-sea myth, forbidden knowledge, and slow-burn romance.
What stood out most to me was the gothic, lyrical tone, but the pace moved very well. The romance simmered, the danger was fantastical but suspenseful, and the worldbuilding is layered. I want the backstory on these people. The voice is really original and I appreciated that this was not just another cut and paste.
I loved Isla’s internal struggle of balancing rational science with the increasingly supernatural. Couldn’t put it down. Sign me up for the next book in the series.
With a title like Fangs & Fathoms, I wasn’t quite sure what to expect. However, the very first chapter clued me in. The research vessel Dr. Isla Hart is on ends up getting attacked by pirates. Then, as if that isn’t bad enough, some strange vessel pulls alongside and takes her captive aboard that strange vessel. Of course, the fact her kidnappers are vampires and The Nocturne is a submarine also gives a hint as to the title. This story truly has Gothic vibes and I was continually reminded of 20,000 Leagues under the Sea while reading it. Again, I cannot state enough just how beautifully written this story is and how that just pulled me in. I love that style of writing and always have. The chemistry between Isla and Sebastian was off the charts and I really enjoyed watching how they dealt with it. The characters are all so very engaging and the plot is fantastic. I just can’t wait for Part Two of this wonderful adventure!
I received an advance review copy for free, and I am leaving this review voluntarily.
Such a captivating story. I loved the vampires, the elements of the deep sea, lost cities, the love story, and so much about it.
The main character is amazing and I love her so much. She is a scientist captivated by the open questions. She wants to understand the unknown and make sense of the unexplainable. It’s fun to watch her journey and accept the magical and the yet to be explained. She is driven by her desire to understand and it helps to break through the fear that would otherwise hold her back from taking the next step. Once Pandora's box is opened of all that truly is she can’t go back.
Her relationship is slow burning and pulls you in. You want it to work and you don’t. There are red flags but also vulnerability and connection. It leads to a very interesting relationship that you are on the edge of your seat trying to see what comes next.
The world is magical, deep sea, vampire, lost cities, mythical creatures, modern day. It really pulls you in and it makes me more connected to the ocean.
Overall a wonderful tale and I’m glad it is a series!
This new-to-me author really knocked this series starter right out of the park. I was immediately drawn in by the unique blend of high seas adventure with paranormal fantasy and vampires. Not a combination you see every day. The writing is exquisite in its flow and detail which provides an inescapably immersive experience. The characters are well-crafted and completely engaging. The suspense kept me on the edge of my seat and the slow-burn romance was the icing on the cake. This is an unputdownable, imagination-defying indulgence that I found myself thinking about days after finishing the book. I confess that I am anxiously awaiting more adventures with Sebastian, a sea-faring vampire, and Isla, the determined, head-strong scientist searching for answers to the unexplainable. Highly recommended. ══════════════════ I was provided with an advance copy of this book, for which I thank the author and AXP, but I am sharing my honest and unbiased review on a completely voluntary basis.
Fangs & Fathoms is a stunning and unique read that blends gothic vibes with an underwater twist - who needs a castle when you have a submarine? This slow-burn vampire romance gave me all the beauty-and-the-beast energy I didn’t know I needed, with compelling characters and a satisfying relationship arc that keeps you invested from start to finish.
The story’s hidden secrets and past traumas added thrilling layers, while the slightly emotional damage made the characters’ interactions feel real and engaging. I loved the concept of a scientist meeting a vampire face-to-face - the logical mind versus a creature of myth dynamic was fascinating and added depth to their growing bond.
The magic system is well thought out, and the vivid underwater imagery kept me hooked throughout. Low on spice but high on intrigue, suspense, and slow-burn tension, Fangs & Fathoms is a perfect mix of sci-fi, supernatural thriller, and dark romance. I can’t wait to see what A.V. Wilcott does next!
Thank you to NetGalley and publisher for the opportunity to read and review.
This story offers a unique mix of fantasy and maritime mystery that feels refreshingly different. It's not quite a slow burn (more of a steady, medium-paced unraveling) where each chapter brings new discoveries about the strange ship, its crew, and the powerful creatures dwelling in the ocean's depths.
The tone leans toward wonder and intrigue rather than pure darkness, with a sense of exploration driving the plot. The worldbuilding is imaginative and layered, and I enjoyed the blend of the scientific curiosity of the main character with the mythic, otherworldly nature of her surroundings.
While it didn't fully sweep me away, it held my attention and left me curious to see what the rest of the series has in store. Fans of unusual, ocean-centered fantasy will likely find plenty to enjoy here.
I received an advance review copy for free, and I am leaving this review voluntarily.
Fangs and Fathoms takes the vampire romance genre into bold new territory—beneath the waves. Blending gothic mystery, paranormal romance, and deep-sea adventure, it offers a slow-burn tale that’s as unsettling as it is captivating.
What makes this book truly stand out is how it weaves multiple genres together. It’s not only a romance, not only a horror, and not only an adventure—it’s all three, combined into something fresh and original. As the submarine descends further into the ocean’s depths, the tension rises, pulling the reader into Isla’s growing uncertainty about whether she’s transforming—or falling apart.
Verdict: Darkly atmospheric and irresistibly seductive, Fangs and Fathoms is ideal for fans of gothic settings, closed-door romantic suspense, and stories where danger hides in every shadow. A must-read for anyone who wants their romance sharpened with mystery, secrets, and teeth.
Isla is a scientist set to uncover the impossible that destroyed her father. Her last venture killed the crew and left her alive. Now, set out once again, she is taken by a crew of vampires set on discovering an artifact that will help them walk in daylight. They plan on using her data and knowledge to help them find it!
Isla will see and experience things only magic can create. What they seek is dangerous, ancient, and sentient. It marks Isla but why? This story is somewhat science fiction as well as paranormal. Primarily set beneath the ocean in advanced technological sentient machines, areas with old magic, and more.
In this battle, what rules the abyss will soon make others choose. It punishes and rewards There is also something between Sebastian and Isla, something deep and profound. Can they survive what is to come? The changes on the horizon? The enemies that will chase them for the knowledge and gifts received? This is the first part of their journey.
Thank you to NetGalley for an eARC of this book. I give it a ⭐️⭐️⭐️/5 stars. The dialogue between the characters was easily my favorite part of Fangs and Fathoms. It was so witty and kept me interested even when the plot was a bit slow and confusing. The “connection” between the MMC and FMC felt a bit forced at the beginning, not like insta-love, but definitely similar to it. And maybe it went over my head, but the science didn’t feel believable to me. Isla asked so many questions and I sometimes felt like she didn’t get to the bottom of them before just moving on. It made for confusing parts of the plot that I just had to move on from instead of trying to figure out along with her. Overall, a super unique story, and I really liked Sebastian. He definitely gave off the typical broody vampire male lead, but I ate it up.
I received an advance review copy for free, and I am leaving this review voluntarily.
Solid 🌟🌟🌟🌟/🌶
Thank you for the opportunity to read Fangs & Fathoms! I enjoyed it, and will definitely watch for the sequel.
I found the characters well-rounded, and agree with separating the story across multiple books - there is a LOT going on across backstories for them all that is relevant, but you reigned it in so it did not become overwhelming in the single book.
The burn is sooooo slow. Glacial, even. If you want spicy as your main first ingredient, temper your thirst. Most vampire romances are higher on the spicy, so just go into it expecting the slow and off-page😊
Imagine you're in the open ocean being invaded by pirates and then suddenly you think you are saved when another ship arrives and starts "taking care of" the pirates.... Only to then be kidnapped by your saviors... Well that's what happened to Dr. Isla Hart.
The moment Isla sees Sebastian on her ship, there's a connection and she thinks he's there to save her. Which he does but only to then take her since she's been researching the area him and his crew are looking for something. And plot twist, Sebastian is a vampire which is part of the magic world that Isla doesn't fully believe.
I was hooked on this book right away. I definitely have never read a book with a vampire crew on a submarine. And I loved Sebastian the moment he showed up. Must read and I can't wait to read the sequel.
A supernatural thriller with secrets, a scientist and vampires all mixed together in a ship that doubles as a submarine, and searching for a myth. What makes The Nocturne truly stand out is its atmosphere, it drips with gothic intensity: underwater pressure, shifting loyalties, and a constant sense that something monstrous is stirring in the depths. The submarine becomes a character in its own right—luxurious yet suffocating, a place where secrets don’t sink, they float just beneath the surface. The story balances romance with suspense, weaving in themes of transformation, trust, and identity. Isla’s journey—from rational scientist to something far more mysterious—is both thrilling and terrifying.