On a dark night, Agent Sherlock is driving along circuitous mountain roads in West Virginia when her car is suddenly T-boned at an intersection. As her car spins out of control, a man’s body slams against her windshield and then—blackness. When she finally comes to, Sherlock has no memory of the accident, nor of the moments that led right up to it. But what she does know is that the man she hit is a local CIA analyst…and now he’s missing.

Meanwhile, in the small town of Gaffer’s Ridge, Virginia, Special Agent Griffin Hammersmith has just rescued a kidnapped woman who claims her captor admitted to the murder of three teenage girls. However, the man she accuses is related to the local sheriff and a member of a very powerful family. Special Agent Hammersmith reaches out to Sherlock for help, and they soon realize that the disappearance of the CIA analyst is actually connected to the string of murders. But how?

Published
March 16, 2026
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An FBI Thriller

The series

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Catherine Coulter’s An FBI Thriller series pulls readers deep into a world where danger lurks behind every corner, and the stakes are higher than ever. At the heart of this pulse-pounding series are FBI agents Dillon Savich and Lacey Sherlock—partners in both life and crime-solving. As their personal bond intertwines with their professional commitments, the duo navigates a relentless array of complex, high-stakes cases that take them from the heart of Washington, D.C. to the farthest reaches of the country.

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The series is a perfect storm of action, psychology, and suspense. Each novel introduces gripping new mysteries, from terrorist plots to twisted mind games, keeping readers on edge with every page. Coulter's intricate world-building paints a vivid picture of the FBI’s inner workings, while her keen insights into human nature bring every case to life, offering more than just thrills—each investigation is an exploration into the darker corners of the human psyche.

What sets An FBI Thriller apart from typical crime procedurals is the relationship between Savich and Sherlock. Their evolving dynamic adds an emotional layer that deepens the stakes, making their victories feel more personal and their defeats even more crushing. Their teamwork isn't just about solving cases; it's about maintaining trust, navigating the complexities of love and work, and facing danger side by side.

With more than 27 installments, the series has built a dedicated following, continually drawing readers back with its high-octane action and nuanced characters. Whether it's the adrenaline of a high-speed chase, the intrigue of a psychological puzzle, or the quiet moments between Savich and Sherlock, An FBI Thriller delivers an immersive experience that keeps readers turning pages well into the night.

For those who crave stories filled with fast-paced action, multi-dimensional characters, and unexpected twists, An FBI Thriller is a series that never fails to satisfy.

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