In a beautiful Belgravia house, Dowager Countess Georgiana intends to celebrate her son's birthday—delightful festivities are planned. Lord Stokely has a different agenda for the occasion, one concerning governance, politics, and the seizing of power. Burgoyne's Agency has yet a third and very dangerous design for the evening—the toppling of Britain's foremost charismatic personality and most photogenic peer—Stokely.

Outside of Belgravia, Britain is in a turbulent state. Confidence in the government is shaken, hidden forces are undermining the peace established after the Great War, and the fear of anarchy is entering British homes.

The game begins for the intrepid secret agency, and it only grows more hazardous—until it becomes a question of survival for Sophie and her friends. The perils of the investigation are magnified as their enemies multiply around them.