Chain Reaction by James Byrne
Published by Minotaur Books on January 28, 2025
Desmond Aloysius Limerick has quickly become one of my favorite action heroes. He relies on his wits more than his fists and isn’t likely to get into a clichéd action hero shootout. In Chain Reaction, Dez fashions a slingshot from a Y-shaped machine part and some rubber gaskets. His deadly aim, shooting nuts and bolts at bad guys, is unlikely but fun.
Dez is a gatekeeper. He has been trained to open doors and keep them open until the mission is over. That skill served him well in the military. He’s trying to live a more peaceful life now but, like most action heroes, trouble finds him.
The novel opens in Spain, eighteen months in the past. Still serving in the military at that point, Dez is supporting a British government effort to acquire a new drug that a professor claims will cure opioid addictions. Dez manages to thwart thieves who want to steal the formula while simultaneously outing the professor as a fraud. Being a guy who lets bygones be bygones, Dez allows the professor’s beautiful assistant to escape.
The assistant is Catalina Valdivia. In the present, Cat is scoping out a convention center in anticipation of committing a crime when she learns that Dez will be there, sitting in with a jazz band. A band member texted Dez to ask for his help, or so Dez believes. Soon after his arrival, the convention center is occupied by terrorists who threaten to (and do) kill people if they venture outside of the buildings.
The terrorists are demanding the return of a Russian spy ship that has been captured by the US and Turkey. They’re using a jamming device to prevent anyone in the convention center from using wireless signals to call for help, but Dez knows his way around electronics and manages to put in a call to the FBI. Agent Stella Ansara appreciates his help despite Dez’s insistence on doing things his own way, especially after he manages to make it reasonably safe for the FBI to enter the center. He gets a capable if reluctant assist from Cat, who eventually ends up in his bed, as do many of the women Dez encounters.
The terrorists are a cover for targeted assassinations of people who have been lured to the convention center, including Dez. The assassinations have been orchestrated by a high-priced group of killers that includes Liv Gelman. Dez recognizes that the convention center has been breached by another gatekeeper and believes that Liv is the only person (apart from himself) who has that set of skills. Liv is one of Dez’s many former lovers. He’s surprised to learn that she is still active, given his belief that he had killed her.
I enjoy the Dez Limerick novels both for the unique nature of the series protagonist and for the perfect balance that James Byrne manages between humor and thrills. For example, when Dez is taken into custody, he’s “given a perfectly fine cup of coffee and, oddly enough, some surprisingly good snickerdoodle cookies while he’s inside. As interrogations go, this one is top drawer.” Nothing much bothers Dez.
In fact, Dez’s nonchalant attitude about danger — he jokes his way from one violent encounter to the next — makes it easy for the reader to enjoy Dez’s company and to overlook the unlikely nature of the plot. It’s rare to encounter a modern thriller that doesn’t tell a farfetched story, but eyerolls are minimized when an infusion of humor signals the reader that it isn’t meant to be taken seriously.
Chain Reaction is smart, engaging, and funny. It also delivers the thrills that thriller junkies crave. This is the third novel in the series and I've enjoyed them all. Readers who haven't followed the series can read this novel as a standalone without missing important context.
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