"It is 1568, three years since Ursula Blanchard exchanged her work as a spy in the service of her half sister, Queen Elizabeth, for the relative calm of married life. But when Elizabeth summons her, loyal Ursula senses there is more to her seemingly benign request than meets the eye. She is to pluck Penelope Mason, her inappropriately flirtatious protégé, from court and find the disgraced girl a husband, and she is also to deliver a secret warning to Elizabeth's arch rival, Mary, Queen of Scots."