In 1565, seventeen-year-old Elin von Snakenborg leaves Sweden on a treacherous journey to England. Her fiance has fallen in love with her sister and her dowry money has been gambled away, but ahead of her lies an adventure that will take her to the dizzying heights of Tudor power.

Transformed through marriage into Helena, the Marchioness of Northampton, she becomes the highest-ranking woman in Elizabeth’s circle. But in a court that is surrounded by Catholic enemies who plot the queen’s downfall, Helena is forced to choose between her unyielding monarch and the husband she’s not sure she can trust — a choice that will provoke catastrophic consequences.