It is an hour of desperate need for St. Frideswide's. Thrust into financial ruin by the incompetence and corruption of their former prioress, the nuns have become trapped under the thumb of Abbott Gilberd as he pries into every possible corner of the priory's life.

In an effort to escape their desperate straits, Dame Frevisse is forced to journey to London in order to seek both a new prioress and financial aid for her beleaguered sisters. Once there, she turns to her wealthy cousin Alice, lady wife of the influential earl of Suffolk. But with a new Parliament warming to its arguments, Frevisse discovers that Alice's need may be even greater than her own. Caught between the powerful Gloucester, the machiavellian Bishop Beaufort, and the darkly handsome Duke of Orleans, Alice is torn by the broken loyalties of those she loves the most.

Before she can unravel the twisted turns of romance and deception, Frevisse herself is caught up in the intrigue, carrying secret messages which will determine England's future. But the mystery deepens when one of the other messengers is killed, and Frevisse must solve the murder in order to save not only herself, but Alice's immortal soul.