The Dreadmoor Experiment

by Barrie Stevenson

It was the greatest medical breakthrough. It became the perfect killer.

When a catastrophic mistake leaves his wife, Clara, in a coma, Dr. Elliott Harrison is consumed by guilt – and determined to find the truth. His investigation leads him to a remote Scottish island, where Clara had been consulting for an exclusive biotech clinic.

Hoping for answers, Elliott joins the team developing a revolutionary implantable medical device. But when islanders begin dying under suspicious circumstances, he uncovers a chilling truth: the technology he trusted to save lives has been turned into a weapon – and the woman he loves may be at the heart of it all.

The Dreadmoor Experiment is a twisty, atmospheric thriller that blends the visionary science of Blake Crouch's Recursion with the emotional intensity of Alex Michaelides's The Silent Patient.
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Praise for The Dreadmoor Experiment

"Absolutely gripping — I nearly missed my train stop because I couldn’t put it down. Huge cinematic potential, clever and thought-provoking." — Emilie B.

"Weaves medical tension with moral decay in a world that feels terrifyingly plausible. The emotional punches land like sledgehammers." — Hayley B.

"Without a doubt, one of my favorite reads in 2025… A masterpiece." — Olga F.

374 pages, Kindle Edition

Published September 26, 2025

Reviews

[Philippa Brewer]

A fast paced, tightly plotted read, with loads of thought- (and dread, as per the title) -provoking ideas, made all the more scary by the fact that Stevenson is himself an A and E (emergency room) doctor with, presumably, the inside track on how initiatives in medicine, allegedly designed to help mankind could go horribly off-kilter in the wrong hands.
It's really thought-provoking and makes you wonder about the life path we've all been put on by technology, without letting up the tension at all.
No plot spoilers, but there's one unbelievably terrifying megalomaniac in here who made me wish we'd left actual-God in charge instead of letting this wannabe-deity take control.
Is it all too likely to come true? You decide.

[Carrie Boyes]

This is a very cleverly written sci fi thriller. I was intrigued by the accuracy of the medical details and found out that the author is an A and E doctor which explains why it seems to realistic. If you love modern Sci Fi like Silo or indeed any well written thriller you will enjoy this. The hook’s in every chapter kept me reading until Midnight. And there are twists you don’t see coming. A very skilfully written book which I can see as a film or tv series.

[melissa!]

This book was life altering.
100/10

[felicity :)]

actually amazing. like omg the plot twists were insane. very very good book

[Savannah Prescott]

Wow!! It’s been a while since I’ve read a sci-fi/dystopian that I couldn’t put down, but I was hooked from the very beginning of this story!! Barrie’s story did a wonderful job of shedding a light of the NHS and some of the challenges their facing, but also what is looks like to truly be passionate about saving lives! I am hooked and I can’t wait to see what comes next in this series!

[Rebecca Morel]

Wow! This book was a true medical mystery type book, with a twist I never saw coming. How far would big pharma go to keep us sick for profits? Great read!!!

[Bryce Jokes]

This was such a gripping thriller. I really liked how the story took something as promising as medical technology and slowly turned it into something genuinely frightening.

Elliott was easy to root for because his search for answers wasn’t just about solving a mystery,it was about finding out what happened to the woman he loves. That emotional side made the suspense hit harder for me.

The remote Scottish island setting also worked really well. It gave the whole story an isolated, uneasy feeling, and as the deaths started piling up, I kept wondering who could actually be trusted.

What I enjoyed most was the way the book made me think about how far science should go and what can happen when the desire to create something groundbreaking gets ahead of morality.

The twists kept me interested, and the combination of medical suspense, mystery, and emotion made this a really memorable read.

[Graham Elder]

This brilliantly written debut medical thriller from Barrie Stevenson combines an intricate, mesmerizing plot with complex character development and world-building. I was captivated from the first words, and the ending blew my mind, leaving me wanting more!

As a Canadian orthopaedic surgeon, I enjoyed the accurate and experienced portrayal of the book’s medical aspects and even learned a thing or two about the very different UK healthcare system.

As a writer and aficionado of medical thrillers and science fiction, I appreciated the masterful storytelling and graceful weaving of the two genres into this unique form of technothriller. The concept of the Cardioguard and the ramifications of this futuristic technology within the story were truly inspired. Doctors Elliott and Marcus were beautifully developed characters who jumped off the page with realism.

I listened to the audiobook and absolutely loved Aubrey Parsons’s interpretation and narrative style. Then again, who doesn’t love a good Scottish brogue?

Looking forward to the second book in the Dreadmoor Cycle!

Graham Elder, co-author (with Laura Cody) of the #1 Amazon medical thriller Call Game, and author of the Amazon #1 bestseller series A Covid Odyssey.

[Mike]

A virtuoso debut novel with top scores for page-turning thriller, engaging plot twists, relatable characters, vivid and exotic settings, and top quality writing.

THE DREADMOOR EXPERIMENT hooks the reader from the first page, then takes them on a dynamic journey through realistic medical crises, a dystopian future, intense conflicts, and existential catharsis.

Elliott and Marcus are not only the ideal protagonist and antagonist, but they share internal conflicts that add believable three-dimensional connections. Clara, as the catalyst between the two, is both mysterious and alluring. The character development alone makes this novel a must-read.

Beyond the medical thriller tropes, the author’s writing style reflects the loftier prose of literary fiction. That becomes the ideal vehicle for deep introspection into the commonality among all humans. What is life? What is death? Does anyone really win? Or lose?

THE DREADMOOR EXPERIMENT is a rare, immersive experience that will leave the reader satisfied and yearning for the next book in the series.

[Alex Jordan]

The Dreadmoor Experiment is a dark and gripping thriller that blends medical science with a haunting island setting. From the very beginning, the story pulls you in with its emotional weight and sense of mystery. Dr. Elliott Harrison’s search for answers feels raw and human, and the isolation of the Scottish island adds a tense, claustrophobic atmosphere that makes every discovery feel dangerous.

What really stood out to me was how the book balances high-stakes science with personal emotion. The concept of life-saving technology turned into something deadly is chilling, and the twists keep you second-guessing where the truth lies. It’s smart, suspenseful, and unsettling in all the best ways, a thriller that lingers in your mind long after you finish.

[Sarah Milsom]

If you’re into medical drama with spine tingling moments where reality meets fiction then read this. We have been so close already to many terrible diseases in particular the recent pandemic. - we remember the fear, the horror of the news and the economy collapsing that I’m amazed more books like this haven’t addressed the idea of another reality of a lethal virus - this book goes deep into the emotional heart of the medic and the ethics of having a cure that’s within reach for everyone and got me thinking just how big pharma would behave.

[Lisa]

This is a fast-paced, skilfully plotted novel set in a scarily real sounding near future. The author’s day job as an emergency medicine doctor definitely adds weight and authenticity to the medical facts in the story, making The Sentinel a wholly believable prospect. I enjoyed the juxtaposition between the high stakes of life and death (I could feel the exhaustion of an emergency doctor dripping off the page in the early chapters) and the differing human reactions to both – love and kindness alongside greed and ego. I definitely recommend.

[Olga S]

I've had the pleasure and honor to beta read Barrie's debut novel.

With enough plot twists that will leave you breathless, wanting for more, this fast paced thriller is everything I would have hoped for. Elliot's struggles kept me rooting for him and I was constantly craving for more. Barrie's clear, practical and sometimes chilling prose made The Dreadmoor Experiment one of my favorite books in 2025!

[Sasha]

Very fun! I very much enjoyed this read, though I'm not sure I'll continue reading the series as I liked this as a stand-alone story.

Well written and thought out, and very human.

Some loose ends felt like they disappeared without a trace, but perhaps they'll be addressed in the next book.

Thank you to BookSirens for my copy.

[Beth McCallum]

I found this book totally gripping for the first 75% and then I felt the last quarter was a bit cheesy and rushed. A really cool concept of a book with lots of action. Fast-paced and super enjoyable! I think I just wanted more side quests, a bit more character exploration, and more seriousness in the serious bits.

[Annabelle Curran-Hamill]

A real page-turner and very readable. Was recommended by a colleague but it wasn’t my usual genre of choice, so I put it off. But once started, I was hooked. Fast paced and characters I cared about. It reminded me of John Grisham’s thrillers, and I loved the originality of medicine meeting tech. Definitely recommend. 👍👍👍

[Michael Harnnoi]

Great read, full of twists and turns through the whole book. Recommend it to anyone who enjoys a thriller.

[Claire Charlton]

This is a fantastic read - I was gripped from the opening pages!

[Lynseygibs]

Thanks to BookSirens, publishers and author for an ARC of The Dreadmoor Experiment.

A good book with interesting subject. The writing felt a little disjointed but overall enjoyable.

[Elizabeth Hollins]

A tense medical thriller that grips from the first page, dark, exciting, and a sprinkle of Scottish atmosphere. Brilliant!

[Eileen Goodwin]

Sci fi thriller. It’s a fast read and I’m anxious to start the 2nd in this series.

[Maggie Deaton]

Slow start....

This book is one I struggled to get into. It seemed to pick up about midway and then bogged down yet again. Not awful but not my type of read either.

[Trey]

A fun read, but has one or two too many twists/complications.

[Lucy]

This was a really great read. Beautiful writing and very descriptive.

[Gary Dewolfe]

Just could not get motivated with this book. I watched TV to avoid it. Interesting story line, not a good story teller.

[Lisa]

I loved this book! Once I started I couldn’t put it down. Very satisfying.

[Jennifer Lake]

The beginning of this in an NHS hospital and some of the plot points are so fantastically written that they are almost too real to read. I liked the characters, the writing, the plot, the narration - basically everything apart from how sad it made me feel, which is a testament to the skill with which it is written.