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The people of Virginia Beach were stunned at the sound and sight of the Boeing 737 airplane as it plummeted.

Shielding their eyes to follow its contrails, to their horror, within seconds it plunged to the earth, taking over one hundred souls with it.

Detective Remy Ferguson of the Miami Police Department is eventually contacted by an NTSB investigator who uncovers a mysterious clue. Remy comes to the horrific realization that his nemesis has resurfaced. Downing a major airliner may be just the beginning for this psychopathic serial killer, indifferent to any and all innocent lives who may be in the way. Who are the real targets, and what is the unifying objective for seemingly unconnected murders?
No matter how much he tries to put the past behind him, Detective Remy Ferguson finds himself once again facing his arch rival, L’Inconnu. With the evidence pointing to a single individual, Remy and his team work against the clock, handling one homicide after another, to reveal the insidious plan. With massive implications uncovered, will Remy risk his career, his team, and his very life to stop it in time?

Readers of psychological thrillers, hard-boiled detective thrillers, and action thrillers love the Detective Remy Ferguson Thriller Mystery Series. Order Book 3 today!

396 pages, Kindle Edition

Published July 25, 2024

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About the author

Dan Grylles

11 books117 followers
Dan Grylles is an award winning short story author. At a young age he developed three lifelong passions - writing computer programs, writing music to play on his guitar, and reading mystery/crime novels. Later, lured by the intrigue of thriller mysteries, he followed the clues of his own life and began writing those too. Dan's professional background includes many years managing a pet sitting business which inspired his fun and quirky novella, M is for Dog Show. Contact: Dan@DanGrylles.com.

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5 stars
75 (40%)
4 stars
68 (37%)
3 stars
35 (19%)
2 stars
4 (2%)
1 star
1 (<1%)
Displaying 1 - 24 of 24 reviews
Profile Image for Dan Grylles.
Author 11 books117 followers
Read
July 10, 2024
With each book I do a short post here on Goodreads to share a bit about my thought process behind the story’s creation. Mass Infliction is very special to me as it wraps up the first multiple book story arc in my writing career. While a tremendous creative challenge, it also presented a unique opportunity to bring Det. Remy into another conflict built around important themes of our times.

As Michael Crichton displayed in many of his books, technology can be used for great good and for great harm. Many years since his death we have seen the astounding acceleration of technological advances for making our lives easier, as well as its abuse in the hands of those with evil intent. In Mass Infliction, I wanted to show what could happen if a rogue group of software experts combine forces and unleash their destructive genius upon an unsuspecting world, and the dangers of taking it too far, all in the name of justice and so-called “leveling the playing field.”

We meet Det. Remy in a place where he has somewhat successfully put past trauma behind him, and his professional success and private relationships have grown since Book 1. Things look good, until they don’t. Be prepared as he and his team embark on a wild ride chasing down a deadly group of bad actors led by his archnemesis, L'Inconnu, who stir up a hornet's nest without realizing the full extent of the damage they have ability to cause. Wielding a power that can bring centers of commerce and government to their knees, L’Inconnu justifies the infliction of havoc on the masses according to a morally ambiguous code and a purpose Det. Remy cannot fathom. Trust me, this is a world you only want to meet from the comfort of your couch! What will Miami’s favorite detective risk in this match of wits and rogue technology?? Grab onto your seat and enjoy the ride!
Profile Image for Tara Leigh.
176 reviews31 followers
July 16, 2024
I thoroughly enjoyed this book!

At the beginning all the chapters kind of felt like numerous short stories, because there were new characters and parts of their stories introduced in each chapter. I loved this. It really moves things along and is a very intriguing and smart way to fit in a lot of information while keeping the story interesting.

I love a good villain and L'Inconnu is exactly that. The characters and the storyline are complex and smart. The suspense is intense. I really enjoyed how the ending wrapped up the series, although I know I'll miss these characters.

Farewell Remy.

Thanks for a great series Mr. Grylles.
Profile Image for Barbara Harrison.
3,598 reviews96 followers
July 26, 2024
Set aside two days for this suspenseful cyberterrorism procedural that starts at the Watergate in Washington, DC in early spring.

I received a free copy of this book via Booksprout and am voluntarily leaving a review.
312 reviews
August 28, 2025
Good cyberterrorist story. Interesting characters. Very pleased with it being a free Amazon book.
12 reviews2 followers
July 31, 2024
Really enjoyed this book! Felt like it was exciting and gave lots of interesting twists and turns.
Profile Image for Rebecca Morel.
152 reviews4 followers
January 3, 2025
Story was largely centered around a group of hackers that were being targeted one by one. Overall, the writing was good. I'd read more from this author.
Profile Image for Darin Miller.
Author 18 books461 followers
July 9, 2026
L’Inconnu
A plane or two
Who’s next on her list?
It might be YOU! 😱

Senator Payton Hollister isn’t losing any sleep over the latest scandal threatening to derail his storied political career. I mean, sure, the allegations of him consorting with underage girls at various strip clubs are true, but he knows how to play this game; he’s been playing it for a very long time. It has been his experience that money really CAN buy you anything and anyone, and this is just another storm to weather.

Except this time, he’s not the one controlling the game.

After delivering a prepared statement to the ravenous DC press, he boards a plane for a return trip to his home state of Georgia—executive class, of course. Imagine his surprise when midflight, he receives a PM from an unknown source that asks if the good senator is enjoying his flight. It includes enough photographic evidence of his lascivious activities to be worrisome, but not for very long. With a bump and a hitch, the plane makes a steep, unanticipated final descent, taking the corrupt senator and one hundred and eleven other innocent souls with it.

And so, the game begins—or maybe I should say, the game resumes…

Meanwhile, our unsuspecting hero, Detective Remy Ferguson, is doing his part to keep the streets of Miami safe and sound. He’s also still struggling with the post-traumatic stress of nearly being drowned by one of the most ruthless and diabolical assassins he’s ever met, the enigmatic L’Inconnu. After barely surviving their encounter on an ill-fated luxury cruise ship, he cannot completely put her out of mind. She’s already returned once to toy with Remy and keeping him on his toes is a game she truly enjoys. With elements of their latest encounter still unresolved, Remy knows it’s not a matter of if she’ll return…only when.

When the FBI reaches out with a surprising connection to Senator Hollister’s doomed flight, Remy finds himself pulled right back into the game, racing a clock while a body count of seemingly unrelated victims grows. Utilizing every departmental resource at his disposal, he’s always at least one step behind a diabolical nemesis whose ultimate agenda is anything but clear.

After a literally explosive prologue, Grylles keeps tension high as he rotates through his cast of well-drawn characters in subsequent chapters, slowly weaving their disparate paths together until they finally coalesce, revealing L’Inconnu’s ultimate, terrifying goal and its far-reaching implications. I’d say more, but I’m afraid she’s listening…

Third entry in Grylles’ highly entertaining series is intricately plotted, complex, and features an ending that is genuinely satisfying. My only real complaint is that the final draft felt more rushed into production than prior entries, which have been darn near flawless. There were just enough typos that made it through final proofing to notice, but in all fairness, I’ve spotted a couple in my latest traditionally published read that only confirms editing truly IS forever. I’m fairly certain, though, that short of donning a wig, taking someone’s hair from chestnut brown to honey blonde takes a lot longer than a half hour. All of this combined is what prompted the half-star ding, but it wasn’t enough to stop me from being thoroughly swept up in an otherwise engaging ride. On platforms that don’t deal in half-stars, my review will be rounded up to five stars.

I’ll be interested to dive into the next three books in the series, collectively subtitled “Renegade Force,” which feature a younger version of Remy Ferguson and how he earned his reputation as one of Miami-Dade’s finest.

I’ve already bought my tickets…
Profile Image for ✨ ੈ✩‧April ♡ ʚ♡⃛ɞ✨.
479 reviews34 followers
August 22, 2024
thank you for the giveaway read!
Mass Infliction by Dan Grylles is a riveting thriller that grips you from the first page and doesn’t let go until the very end. The story plunges readers into a high-stakes world where danger lurks around every corner, and the characters are forced to confront not just external threats but also their own inner demons.

Grylles has a talent for creating suspense, and this book is no exception. The pacing is relentless, with each chapter building tension and pushing the plot forward. The twists and turns are well-executed, keeping readers on their toes and making it hard to predict what will happen next.

The characters in Mass Infliction are well-developed and relatable, each with their own unique backstory that adds depth to the narrative. Grylles does an excellent job of balancing action with character development, allowing readers to connect with the protagonists on a personal level. The emotional stakes are just as high as the physical ones, which makes the story all the more engaging.

One of the standout elements of this book is its exploration of complex themes such as morality, survival, and the human capacity for violence. Grylles doesn’t shy away from difficult questions, and this adds a layer of depth that elevates Mass Infliction beyond a typical thriller.

However, some readers might find the intensity of the story overwhelming at times. The constant tension, while effective, can be a bit exhausting, and a few more moments of respite might have made the narrative feel more balanced.

Overall, Mass Infliction is a must-read for thriller fans who enjoy a fast-paced, thought-provoking story. Dan Grylles has crafted a compelling novel that will leave readers eagerly anticipating his next work.

Profile Image for Roger Campbell.
309 reviews8 followers
September 22, 2024
📚 Book Review 📚
By
Dan Grylles
Mass infliction
⭐⭐⭐⭐⭐
A Boeing 737 jetliner crashes into the sea off the coast of Virginia Beach, with no survivors. Onlookers are shocked, contemplating what could have brought the passenger plane down. On board, the aircraft was US Senator Hollister. Was he the target? The FBI was called into the investigation to assist the NTSB. After listening to the chatter on the plane’s black box, the FBI advises NTSB Inspector Pearson to call in Florida Police Detective Remington Ferguson. Why, because it comes to light that Ferguson’s old adversary, L’Inconnu is somehow involved and the disaster is much more than a simple terrorist attack. The plot becomes even more baffling when we learn that primarily two software hacker groups are involved in manipulating computer software for illegal activity, primarily ransomware. Although the hacker’s real names are not revealed to each other, their hacker tag names become unique and meaningful to each hacker.
Dan Grylles does a masterful job of weaving a complex, suspenseful, thriller that will keep the reader glued to every page. The beginning chapters introduce us to the array of various character personas and individual uniqueness, and the extent of their involvement. I thought the story had a fascinating plot with an array of captivating characters. The interpersonal relationships were well-developed and intriguing. The story was highly suspenseful, with twists and turns around each page. What made this book scary was the scenario of potential real-life events that could easily become a reality with today’s computer hackers becoming more sophisticated. I would recommend this book as a high-tech thriller and am looking forward to reading more of Dan Grylles’, Remington Ferguson books.
Profile Image for Texas.
1,866 reviews38 followers
July 15, 2024
Detective Remy Ferguson Thriller Mystery Series:
Mass Infliction, #3 - Interesting and intriguing, although the start was slow. Once the story picked up it was immersing with good story lines, plenty of misdirection (some obvious), and some surprises. Not as good as Innocence Lost, but still a good read. 4*

Dragging Down, #0 - A simplistic, quickly read novella introducing Ferguson with an interesting twist in a case he is investigating. Source: BookSprout. 4*

Mystery of L'Inconnu, #1 - A more indepth killing spree. It drug on in the beginning but became more interesting as the story unfolded. Good story lines with a variety of characters, and plenty of misdirection to keep my interest. A bit wordy but a still entertaining. There is the L'Inconnu Passenger Manifest describing the passengers, which did not interest me. I wanted to read L'Inconnu fresh without knowing anything about the passengers. Source: Booksprout. 4*

Innocence Lost, #2 - A faster pace than 'Mystery of L'Inconnu' and filled with a lot of intrigue making for an interesting story. Bad news though, the multiple investigations are not finished making the story just stop point blank, to be continued. Source: BookSprout. 4*
Detective Remy Ferguson Thriller Mystery Series end.
2,214 reviews10 followers
July 26, 2024
This was a fitting ending to the story arc involving L'Inconnu. And the main storyline for this book could easily be ripped from the headlines. As we become more and more dependent on computers, there is more chance for things to be ground to a halt by hackers or by companies sending out a system upgrade that is incorrect.

I love Remy's tenacity in continuing to follow the clues in a case until there is a resolution and how he has his own personal challenges. There were a number of characters we were introduced to at the start of the story but then the action started to pick up and the various parts of the puzzle began to make sense. Some of the twists were a little predictable (come on, how can everything be a surprise) but then there were some elements I wasn't expecting. I'm looking forward to seeing what is in store for Remy next.
Profile Image for W.M. Leesman.
Author 4 books31 followers
September 29, 2024

Overall thoughts - Did Dan Grylles capture my attention in Mass Infliction to keep me reading until the end? Yes. Grylles has crafted a novel that is believable and enjoyable and at times keeps me on the edge of my seat.

Plot - Initially the plot is so complex it can feel a little disjointed. Grylles successfully entwines the multiple threads into a cohesive ending with a surprise twist. That is a great skill and Grylles does that well.

Characters- Mass Infliction has many characters and if I had one criticism, it was more focus on secondary characters to the detriment of the main character. I would have liked more focus on the main character, Remy Ferguson. However, Grylles is still able to capture my imagination.

Conclusion - Mass Infliction is an excellent read and I look forward to reading more from Dan Grylles. Well done, Dan!
207 reviews2 followers
March 9, 2026
So many moving parts, but Dan Grylles works the characters to create a perfect symphony. Those who have read the first two books of the trilogy will remember the main characters and meet a host of new ones. While Remy is still looking for his nemesis, L'cannou, he now has the support of the FBI. L'cannou also has a bigger support staff, but they seem to by disappearing throughout the story. Lots of hacking, AI and good guys gone bad, then good again. This is the kind of story that sometimes, you don't know who to root for. A very satisfying read and ending of the trilogy, I am wondering about the future for Detective Remington Ferguson and if he will come back in a new series.
Profile Image for AMBER CLARK.
961 reviews25 followers
July 27, 2024
This is the third installment in which Detective Remy Ferguson, of the Miami Police Department, faces off against his arch rival, L’Inconnu. In what could be a ripped from the headlines thriller, can Lt Ferguson and his team saves thousands of innocent lives? This is an edge of your seat, action packed, fast paced thrill ride- all without leaving the comfort of your home. Dan Grylles will keep ou guessing until the end!.
436 reviews5 followers
July 31, 2024
A plane goes down killing 100-plus people and Detective Remy is brought in to find out who's behind the crash. As he digs deeper he discovers it's his old nemesis, L'Inconnu. It's up to Ferguson to stop him before the bodies pile up exponentially. There are plenty of action and thrills in this psychopathic mystery.

I received a free copy of this book via Booksprout and am voluntarily leaving a review.
Profile Image for Tahnia Ross.
2,184 reviews9 followers
August 1, 2024
When a plane with a Senator on board crashes into the ocean, the FBI confiscates the black boxes. Something on the boxes caused an FBI agent to contact NTSB Inspector Pearson and inform him he needed to call Det. Ferguson. And so, it begins. This story is full of action, ending with a vacation for the Detective. Very highly recommended.

I received a copy of this book via Booksprout and am voluntarily leaving a review.
Profile Image for Becca.
3,320 reviews48 followers
August 2, 2024
This ending broke my heart. The book was so dang good but the ending got me. I never saw that one coming. And another part of the ending makes me wonder who is still out there. There's more to this mystery. I'm definitely ready for another book!.

I received a free copy of this book via Booksprout and am voluntarily leaving a review.
Profile Image for Gloria.
2,161 reviews12 followers
July 30, 2024
In this exciting final book of the series Detective Remy Ferguson once again finds himself pitted against his nemesis simply known as L’Inconnu. Excellent thriller.

I received a free copy of this book via Booksprout and am voluntarily leaving feedback.

3,707 reviews21 followers
August 11, 2024
Mass Infliction is a suspenseful psychological thriller focusing on Detective Remy as he searches for his nemesis, L'Inconnu following the downing of a passenger airliner. This well written and intense book involves cyberterrorism, mystery, action, plot twists, and a memorable ending.

I received a free copy of this book via Booksprout and am voluntarily leaving a review.
Profile Image for Debbie Jones Warren.
16 reviews5 followers
December 26, 2025
Dan Grylles is adept at building suspension right from the first page. Can't put it down -- well, when I have to set it aside, the story lingers in my mind, pulling me back!
743 reviews
March 22, 2026
Like the first book there were way too many characters keep track of; not to mention all the locations. Kind of slow at first drug along, but picked up near the end.
Profile Image for Tim Davis.
135 reviews2 followers
December 27, 2025
I congratulate the author for having and creating the idea behind the Mass Infliction! In the digital world we live in, I hope those who know how to do this form of programming, don't read the book!
It's alarming to think that this could take place! I recommend the read.
59 reviews2 followers
September 26, 2025
When I first started reading I will admit I was confused. It seemed like a lot of short stories. If you can hang in there and continue, you will experience evil at the highest level! The subtle climb to get to the base and then the climax of this, is well versed. To think that something like these events are really not out of the realm of possibility is truly frightening. A keeper.
Displaying 1 - 24 of 24 reviews