Fifteen-year-old Beth Johnson is a talented and beautiful young actress. She is also a spy. Basking in the long, hot summer of 1666, Beth Johnson is looking forward to her first leading role. But when she receives an anonymous letter, the world is turned upside down for Beth and her friend John. Henry Vale, the dangerous mastermind behind the plots to kill the King, has kidnapped John's sister and is blackmailing John into helping him lure the King...