
Publisher: Sphere/Audible (Audiobook – 20 February 2024)
Series: Gray Man – Book 13
Length: 17 hours and 34 minutes
My Rating: 5 out of 5 stars
One of the leading authors of the spy thriller genre, Mark Greaney, returns with another epic entry in his iconic Gray Man series, The Chaos Agent.
Readers of this blog will know that I am a massive fan of thriller author Mark Greaney, who has been wowing the world with his elaborate and exciting stories for years. Ever since I started reading thrillers, Greaney has been a major figure in my yearly reading schedule, with books like Armored and Red Metal (cowritten with Hunter Ripley Rawlings IV), ensuring that he became a must-read author for me. However, his most iconic body of work is his Gray Man series, which follows legendary former CIA agent and assassin Court Gentry, known as the Gray Man, as he engages in carnage across the world. This series, which people may be familiar with thanks to the Netflix adaptation, is so damn good, and I really love the elaborate and intense stories that emerge. This includes the impressive first novel The Gray Man, as well as later books like Mission Critical, One Minute Out (one of my favourite books and audiobooks of 2020), Relentless (one of my favourite books and audiobooks of 2021) and Sierra Six (one of my favourite books and audiobooks of 2022) and Burner (one of my favourite books and audiobooks of 2023). Naturally, I grabbed Greaney’s latest novel, The Chaos Agent, the first chance I could, and it proved to be another amazing read.
Across the world, elite scientists are being murdered in a series of elaborate and well-coordinated assassinations. The killers are well equipped, well prepared, and seem capable of striking across multiple countries. The only connection between the killings is the area of expertise the victims are known for, as someone is targeting the world’s leading experts in artificial intelligence and robotics.
As the killings continue, it appears that only two major assassins aren’t involved in the plot, the Gray Man, Court Gentry, and his lover Zoya Zakharova. Hiding out in Central America after their last mission once again forced them to become fugitives, Court and Zoya are seeking the quiet life together after all their years apart. But an assassin’s work is never done, and soon an old family friend of Zoya’s seeks them out, hoping that they can help identify the individuals behind the attack. Initially reluctant to get involved, Court and Zoya soon find themselves targeted by association, and must flee an army of dangerous killers and mysterious advanced combat drones.
Forced to find out who is hunting them, Court and Zoya soon discover that the killings are linked to a deadly proposed artificial intelligence weapon that could change everything about modern warfare. To discover what’s truly going on, the two former agents and their allies need to investigate the one survivor of the ongoing assassinations. But with their target now protected by an old friend of theirs, Zack Hightower, in an isolated fortress, Court and Zoya will need to use all their connections and luck to find the truth before it’s too late?
The Chaos Agent was another excellent novel from Greaney, who continues to highlight why he is one of the world’s leading spy thriller writers. This latest Gray Man novel ended up being a lot of fun, especially as Greaney goes a little overboard with the plot, and I deeply enjoyed the resulting adventure.
Greaney came out of the bag with something very exciting in The Chaos Agent, which is mainly down to how over-the-top and crazy the main narrative ended up being. This story starts off relatively low-key, with a couple of random killings, and an update on the lives of the protagonist, Court Gentry, and his partner Zoya Zakharova. Naturally, it doesn’t take long for Gentry and Zakharova to get dragged into the action, and this starts an intense fugitive arc for them, as they find themselves being hunted by various killers across central America. At the same time, the other supporting characters of the book are investigating the worldwide plot around the assassination of various AI experts. This results in a compelling investigation angle that continues for a large portion of The Chaos Agent, and it was fun to not completely know the identity of the book’s antagonist until towards the end. This first half of The Chaos Agent definitely got my attention, and the compelling action, intense mystery, and intriguing characters help to draw the reader in.
The second half of The Chaos Agent is where things start to get particularly interesting, as Greaney amps up the story and throws it into overdrive. In particular, the antagonists get even more crazy, which is well shown in an intense action sequence involving Gentry and Zakharova in contact’s house in Central America. These additional opponents give The Chaos Agent a real science fiction edge to them, and it was a gloriously over-the-top inclusion that I really loved. The various character storylines soon come together after that, as all the characters end up in Cuba investigating who is truly behind everything and why. There are some cool sequences here, including complex and intricate multi-perspective operations as various players manoeuvre around each other to achieve their goals. This all leads up nicely to the big extended finale, where all hell breaks loose as Greaney sets up a massive firefight with various sides thrown into the mix. The action here is intense, with the carnage flying thick and fast, and with so many perils coming for the protagonists. It all ends on a pretty big cliffhanger that will play nicely into the next book in the series, especially as two major supporting characters find their situation drastically changed due to their decisions.
I deeply enjoyed how this cool novel unfolded, and Greaney utilises his trademark writing style to great effect with this excellent story. The high-intensity action, fast-paced plot, and intriguing overarching storyline came together wonderfully, and it proves very hard not to get drawn into The Chaos Agent as a result. I particularly love how Greaney so effortlessly jumps between different character perspectives throughout the course of the book, which allows for a more complex and enhanced story. These quickfire changes in perspective also work extremely well in some of the book’s more intense sequences, especially as seeing the various participants continuously react to other character’s actions, allows for some outstanding scenes. Good examples of this include a sequence in the Cuban docks where Gentry and a rival assassin move around each other trying to simultaneously protect or kill their target. These scenes, and more, are true highlights of this book, and I love how well they were able to incorporate the particularly eccentric inclusions that Greaney featured within The Chaos Agent.
As with most of the books in the Gray Man series, The Chaos Agent can easily be read as a standalone novel. Greaney does a good job of recapping any the relevant key events from the prior novels where needed so new readers can enjoy this book without knowing anything about the rest of the series. That being said, established Gray Man readers will probably get a little more out of The Chaos Agent, especially when it comes to seeing how the various character relationships unfold. It also helps that this proved to be a particularly memorable entry in the series. Not only does Greaney go all out with his very inventive and exciting story, but there is a great combination of story elements there that everyone can enjoy. The intense action pairs well with a deep dive into modern technology elements, and Greaney pulls together an intriguing mystery about who is behind everything, rather than showing the antagonist from the get-go. While some of the twists around the true antagonist are a little predictable, Greaney played them out well, and they worked into the massive status quo changes at the end of the book. I will admit that I did find some of Greaney’s writing, including the dialogue, to be a little robotic at times in The Chaos Agent, which is kind of ironic when you consider the story focus. The way some parts of the writing or dialogue came together just didn’t feel right to me at times, and that slightly decreased my enjoyment of the book. Still, the awesome story more than made up for it, and I felt this was an awesome addition to the overall series, especially as the epic ending has got me extremely excited for the next book.
One of the things that I really enjoyed about The Chaos Agent was Greaney’s intriguing look at the future of AI and how it could be utilised in the military and intelligence fields. Greaney clearly did some research on the subject, and several characters spend significant time lecturing about the potential advantages and dangers of AI weaponry. I found this to be utterly fascinating, and this ends up being quite a key part of the book, especially once the protagonists find themselves beset by advanced drones and other distinctive weaponry. As I mentioned above, Greaney uses this AI concept to make The Chaos Agent a little more science fiction than his previous novels. While I won’t go into too much detail here, as frankly it is best experienced in the context of the story, some of these elements were very outrageous, and it made the story quite fun with some unique action. While it was very over-the-top, Greaney did paint everything with a film of realism, and I came away from The Chaos Agent with a healthy respect and fear for the potential future of AI in the military, especially as Greaney is probably right and someone will use it to kill the rest of us.
Aside from the complex writing and cool AI elements, The Chaos Agent’s story is also enhanced by a great cast of characters who are cleverly showcased throughout the plot. This includes protagonist Court Gentry and his partner Zoya Zakharova, who were reunited in the last book. Gentry and Zakharova form an effective team as the main protagonists of The Chaos Agent, and it was fun to see them in action again. However, Greaney also adds in an element of dissention, especially as neither really has the ability to trust other people, and they are both concerned about their potential future. Their combined storyline goes in some interesting directions, and the final twist of the book ensures that their relationship will be a big part of the next entry in the series. Greaney also brings back fun recurring character Zack Hightower, who worked with Gentry and Zakharova in the past. Hightower is always great value for money, and he had an interesting run in The Chaos Agent as he’s hired as security for a tech billionaire being targeted. Hightower ends up being an integral part of the book, and it was great to see him working with Gentry and Zakharova again, especially as his new job leads to some dark moments for him. Throw in an excellent supporting cast, which includes some recurring faces and some new intriguing antagonists, and this ended up being an excellent book that makes fantastic use of its characters.
I have always found that the best way to enjoy one of the Gray Man novels is to listen to it in its audiobook format, which really enhances the story. This is once again true for The Chaos Agent, which turned out to be such an epic listen. The audiobook format, which has a substantial runtime of 17 and a half hours, proved to be a lot of fun, and I deeply appreciated how well it enhanced Greaney’s already fun story and writing style. The constant movement between perspective characters, especially in the action sequences, comes across really well, and the intense fights feel so much more real and impactful when they are read out. It helps that The Chaos Agent was once again narrated by Jay Snyder, who has voiced all the other Gray Man novels. Snyder has a great vocal range that really lends itself to a spy thriller novel like The Chaos Agent, and all the over-the-top tough characters are captured extremely well in this audiobook, with Snyder expertly bringing back recurring voices from the previous Gray Man audiobooks. The rest of the extended cast also get appropriate and fitting tones, and you can see Snyder is really trying to get the voices to match the characters. This includes accents, as Snyder tries to capture many of the ethnicities captured within The Chaos Agent’s story, including a pretty good attempt at the New Zealand accent. As such, I really found myself getting drawn into The Chaos Agent’s story while listening to it, and while Snyder can also be a tad robotic at times, this audiobook format was a pretty exceptional way to enjoy this amazing book.
Overall, The Chaos Agent was another excellent addition to one of the very best spy thriller series currently running. Mark Greaney always goes all out with his amazing Gray Man novels, and The Chaos Agent is one of his most intense and gripping reads yet. Clever, compelling, and featuring some particularly fun story features, The Chaos Agent is an excellent read that gets another five-star rating from me.













































