An Act of Treason

When the person you trust most becomes the greatest threat you face, betrayal cuts deeper than any bullet. In An Act of Treason, Marine sniper Kyle Swanson finds himself trapped — literally and figuratively — when a mission in Pakistan collapses around him and the man who shaped him into a warrior turns out to be selling America's secrets to its enemies. With Swanson imprisoned, his CIA girlfriend under suspicion, and their mentor revealed as a traitor, the stakes are both geopolitical and deeply personal. This is a story about what happens when loyalty becomes a weapon used against you.

Coughlin, a decorated Marine sniper himself, brings an authenticity to the tradecraft and tactical detail that no amount of research alone can replicate — and it shows on every page. Co-writer Donald A. Davis keeps the pacing sharp and the tension coiled tight, structuring the novel so that the thriller machinery and the character drama reinforce each other rather than compete. Swanson remains one of the genre's more grounded protagonists, driven by code rather than invincibility, which makes the personal dimension of this particular conflict genuinely gripping.