At the power and mercy of the court her life was a struggle to keep the Queen's Secret.

Katherine of Valois is born a princess, the daughter of King Charles VI of France. But by the time Katherine is old enough to know her father, he is called “Charles the Mad,” given to unpredictable fits of insanity. Aged 19, she marries Henry V of England in what was a happy but tragically brief union ending with his untimely death.

As Joan of Arc incites the French to overthrow the English, Katherine’s loyalty to England is intensely scrutinised so much so her baby son, the new king, is taken from her and she was forbidden to re-marry. The young Queen is alone and desolate. But when she meets handsome Owen Tudor, her life is changed forever as she is drawn into a dangerous but irresistible love…