A Hidden Enemy A Tom Kessler Operation – Book 3

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A covert British team. A Russian operation already in motion. One mistake could trigger a global crisis.

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When disgraced Russian intelligence officer Dmitri Volkov resurfaces in the UK, MI5’s off-the-books unit is forced into a race they cannot afford to lose. His objective is precise: steal the guidance data for a next-generation missile system — technology that could shift the balance of power far beyond Europe.

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Tom Kessler and his small, unconventional team are the only ones in position to stop him.

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Working in the shadows, they must turn a compromised insider, track a seasoned illegal, and hold the operation together after a brutal attack leaves the team fractured.

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But Volkov isn’t the real problem.

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Moscow has already escalated. A GRU colonel has been sent to take control — a man whose presence means the operation is no longer deniable, and failure is no longer an option.

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As the pressure closes in, the team is forced into a high-risk deception with no margin for error and no one they can call for backup.

Because when an off-the-books operation goes wrong, there’s no official version of events.

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Just consequences.

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A Hidden Enemy is a tightly plotted British espionage thriller built on real intelligence tradecraft — where the threat is state-level and the team fighting it has no safety net.

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Perfect for readers of Stephen Leather, Mick Herron, and Mark Greaney.