Berlin, 1930. The jazz plays loudly, but it cannot drown out the sound of marching boots.
In the dying days of the Weimar Republic, Berlin is a city of decadence and desperation. At its center stands Eleonora, a Duchess whose aristocratic world is crumbling under the weight of a new, darker order.
As the shadow of the swastika lengthens, the polished halls of nobility become as dangerous as the gritty back alleys. What begins as a game of influence turns deadly when MI6 recruits her to infiltrate the highest levels of the Nazi party.
Caught between the ruthlessness of rising fascism and the cold calculations of British Intelligence, Eleonora must shed her title and her innocence. In a world of betrayal, she learns that secrets are the only currency that matters.
She is a Duchess. She is a survivor. And before the war is over, history will know her by a single letter: M.