The Perseus Protocol

CIA operative Cal Shepard survived the explosion that destroyed Perseus.

Now, he's a disavowed agent with a kill order on his life.

As the damage spreads far beyond the blast, Shepard uncovers a buried contingency—the Perseus Protocol—a shadow program built into the system by its creator, designed to activate if Perseus ever fell into the wrong hands.

Now Shepard isn’t just being hunted.

He’s racing against the people who want the Protocol for themselves.

Driven underground and halfway across the world, Shepard follows a trail of assassins into thetangled jungles and urban corridors of India, where deniable assets thrive and mistakes are paid for in blood. With the net tightening, he reaches out to a small circle of operators from his past—people who know how to disappear, fight, and survive when the rules no longer apply.

With intelligence agencies closing ranks and elite killers moving to silence him, Shepard must stay one step ahead of a system willing to erase its own—and reach the protocol before it’s turned into a weapon.

The Perseus Protocol continues the Cal Shepard series. This time, the hunt has no rules.