The year is 1569. "In the bleak midlands, Mary Queen of Scots has begun a long imprisonment. Plots and counter-plots swirl around her. In the earl of Shrewsbury's crumbling castles, the captive queen hopes for rescue. At the heart of the earl's household is Jack Cole, a haunted and secretive figure with a dark past. Converted to Queen Mary's cause by a charismatic secretary, Jack finds himself entangled in a Catholic plot to free her. Yet the queen's household is under surveillance. Everyone is a potential spy, or is being spied upon. As Jack is drawn into the dark web of Catholic plotting, he must face a hideous truth. Meanwhile, his wife Amy must choose whether to protect her husband or betray him. Poison is poured, daggers are drawn, and guns are loaded. England's future hangs in the balance. Moving from crumbling castles to the imposing palaces of Queen Elizabeth, Jack Cole must decide where his loyalties lie - with queen, country, or wife."