Double Progression: A Kelsey James Fitness Mystery: Book Two

After discovering a murderous plot involving one of her clients, uncovering a deeply buried family secret, and finding love in what appeared at first glance to be all the wrong places in Time Under Tension, Kelsey James thought she was done with secrets. After all, her day job as a Master Personal Trainer in her beautiful Oakview, California gym keeps her busy enough. Plus, all of the puzzle pieces of her life are starting to fall into place; her best friend and coworker Justin seems to have finally found love, her own relationship status with a handsome detective has progressed steadily into serious territory, and her parents are more devoted than ever after the revelation of Kelsey’s half sister Tina. But Kelsey is back and better than ever in the second action-packed installment of the Kelsey James Fitness Mystery series: Double Progression. What started as an innocent suspicion shared in confidence by a client becomes a deadly game of cat and mouse as marriages and friendships are tested and a shadowy conspiracy is forced into the spotlight. Kelsey’s client, Jennifer’s, life is perfect; she has a successful online shop after clenching a deal on Shark Tank, her kids are happy and healthy, and her sessions with Kelsey are building her confidence along with her body. But after her husband stops sharing his location on a supposed business trip, Jennifer confides her suspicions of an affair to Kelsey. What Kelsey suspects is a simple but unfortunate case of infidelity turns into a cascading avalanche of secrets, lies, and mistaken identities, with Kelsey caught in the crossfire. When a stakeout with Jennifer to confront her husband leads to his disappearance and the discovery of a dead body in his motel room, the two of them devise a plan to uncover the truth no matter the cost, even if it means Kelsey putting herself in the crosshairs of a potential killer. With Fox’s trademark fast-paced style, Double Progression delivers a labyrinthian web of twists and turns that make it difficult to put down once you start. If you loved the cozy feel of the interpersonal relationships between the characters in Time Under Tension, don’t worry, there’s enough everyday appeal interspersed between the intense mystery of the main plot to keep you satisfied. After all, it’s these solid, believable relationships that make Kelsey such a compelling and believable character, firmly rooting her as logical and down-to-earth while navigating a mystery with such a topsy-turvy twist ending that it’ll make you dizzy. Fans of Paula Hawkins and Jeffery Deaver will love this razor-sharp domestic thriller.

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“reviewBody”: “After discovering a murderous plot involving one of her clients, uncovering a deeply buried family secret, and finding love in what appeared at first glance to be all the wrong places in Time Under Tension , Kelsey James thought she was done with secrets. After all, her day job as a Master Personal Trainer in her beautiful Oakview, California gym keeps her busy enough. Plus, all of the puzzle pieces of her life are starting to fall into place; her best friend and coworker Justin seems to have finally found love, her own relationship status with a handsome detective has progressed steadily into serious territory, and her parents are more devoted than ever after the revelation of Kelsey’s half sister Tina. But Kelsey is back and better than ever in the second action-packed installment of the Kelsey James Fitness Mystery series: Double Progression . What started as an innocent suspicion shared in confidence by a client becomes a deadly game of cat and mouse as marriages and friendships ar”,
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“datePublished”: “2025-10-21”
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