Directive Seven

2 books in series
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The Diamond Game Publisher's Summary

Kidnapping. Corruption. A shattered empire’s stolen treasures.

When a mysterious young woman walks into the FBI office asking for a Russian-speaking agent, Special Agent Cosgrove is pulled into a high-stakes game with no rules—and no clear way out.

Drawn from real-life cases of the author, a former FBI Special Agent, The Diamond Game pulls back the curtain on a hidden world of power, betrayal, and survival.

Names and events have been changed to protect identities—but the danger, the stakes, and the emotional truth remain.

This isn’t just what could happen. It’s what did.

Perfect for fans of Daniel Silva, Karin Slaughter, and anyone who craves thrillers grounded in truth.

©2025 Dennis T. Cosgrove (P)2025 Dennis T. Cosgrove
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  • Book 1

    The Diamond Game cover art

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  • Book 2

    Nadezhda Dies Last cover art

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