In April 1812, as she is preparing for her debut presentation to Queen Charlotte, Lady Helen Wrexhall finds herself in the middle of a conspiracy reaching to the very top of society, and learns the truth about her mother, who died ten years ago.

When Hazel becomes the personal physician to Princess Charlotte, the sickly granddaughter of King George III, she is dragged into the glamor and romance of the British court, but she soon realizes malicious forces are at work in the monarchy, and she may be the only one capable of setting things right.

After smallpox takes their parents, seventeen-year-old Camille supports herself and her sister by magically transforming herself into a baroness in the court at Versailles, then faces difficult choices as the French Revolution looms.

In 1385 London, poet John Gower is asked by Geoffrey Chaucer to find an ancient manuscript that prophesies the end of England's kings, which draws him into a labyrinthine conspiracy that reaches from the king's court to London's slums and stews—and potentially implicates his own son.