Amos Decker is back in the fourth installment in David Baldacci's series. And in The Fallen, he is supposed to be enjoying a brief vacation with his partner, Alex Jamison, spending time with her sister who has just moved to the depressed town of Baronville. A former bustling center of industry where the Baron family ran mills and mines in which the local residents toiled, Baronville is in the grips of America's opioid crisis. Unemployment is at staggeringly high rates, but a local fulfullment center where Alex's brother-in-law is employed represents the town's chance for economic revival. At the top of the hill stands the dilapidated Baron mansion in which the surviving son, John, quietly resides. Reviled by his Baron's citizens because his family's excesses, failures, and haughty treatment of generations of Baronville residents, John is, like most in the town, just hoping to eek out a living sufficient get by. When Amos inadvertently witnesses activity in the house adjacent to Alex's sister's, he springs into action, unable to ignore his intuition and training. He -- and Jamison -- quickly find themselves embroiled in a murder investigation, as well as the targets of the criminals who do not want them to discover what is really happening in Baronville. Fast-paced and full of Baldacci's signature, frequently shocking plot twists, The Fallen also takes readers deeper into the heart and soul of Amos Decker. Alex has a young niece whose life is inalterably impacted by the events unfolding in Baronville, and his interactions with her dredge up the pain Amos carries about his own family's demise. Baldacci allows readers to understand Amos better through heartbreakingly tender moments with the little girl. Once again, readers will fnd themselves thoroughly satisfied with the story's resolutions and anxious to read the next book in the Amos Decker "Memory Man" series.