Shadow Protocol: Some inheritances aren't written in wills. Hers was written in blood.

Senior MI6 case officer Anya Kreston has built her entire career on a single, brutal truth: people betray themselves long before they betray their countries. She has read a hundred rooms, a hundred marks, a hundred quiet confessions — and never once turned that same precision on her own life.

Then a stolen drive, a dead source, and a single buried designation — MI-9 — unravel everything she thought she knew about the orphan who built herself from nothing. The locket she has worn since infancy holds a secret thirty years in the making. The handler who shaped her entire career has been managing her from the very beginning. And the woman she has spent twenty-nine years becoming was never entirely her own design.

As betrayal closes in from inside her own service, an American operative becomes the one person she can't afford to trust — and can't stop trusting anyway — Anya is forced to choose between the weapon a dead programme engineered her to be, and the woman her parents secretly built her to become instead.

The war didn't end when her parents died. It only went quiet.

SHADOW PROTOCOL is the explosive first book in a trilogy of blood, betrayal, and inheritance — followed by BLOOD KEY and THE FOURTH CIRCLE.