Chain Reaction By Lee Child and Andrew Child

Gravel, solar panels, five data centers, and two guys trying to take over the world with AI walk into a bar... and they meet Jack Reacher.

Susan Turner is back, and if you've been waiting to see her again since Never Go Back, you're in for a treat. She is now a one-star Brigadier General leading the Army's CSA G-99 Section.  When a CID Special Agent turns up dead under suspicious circumstances, Turner knows in her gut it wasn't a random mugging that led to his death. With her own unit compromised by a powerful tech organization known as Everything Everywhere Forever (EEF)  operated by Axel Brill and Cameron Saxby (in my head I totally saw Pinky and The Brain) , she needs someone completely outside the system. Enter Reacher.

This one feels different from recent Reacher novels. Yes, there's plenty of action, impossible odds, gallons of coffee, enormous meals, and, of course, pie. But there are also welcome nods to classic Reacher. We get those familiar habits that longtime fans love: setting an internal clock in his head, the way he presses his clothes, and relying on his gut. At the same time, he's evolving. Reacher shows more emotion in this book than all the books combined, and it hints that bigger changes may be on the horizon.

The story moves from Colorado to California to Washington, D.C., weaving together data centers, AI, surveillance, gravel companies (yes, gravel becomes surprisingly important), and a plan to dominate the AI world that never leaves U.S. soil. It is absolutely over the top, but that's part of the fun. This is Reacher—we're not here for subtle.


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