A silver cup has been stolen from Marsden Hall and Meg the serving girl will hang for it. Unless she agrees to spy on her friends at the Black Bull Tavern... For loyal Meg it is a terrible dilemma. Her friend Will is desperate to save her. And Will's mother decides to tell them the story she kept secret for so many years...how she herself, as a young lady-in-waiting, was forced to spy on Mary Queen of Scots. The two stories of spies and double-dealing are brilliantly intertwined in this thrilling drama.