In London's smoky taverns, a conspiracy is brewing: a group of wealthy young Catholic dissidents plot to assassinate Elizabeth, free Mary Queen of Scots—and open England to Spanish invasion. But the conspirators have been infiltrated by Sir Francis Walsingham's top intelligencer, John Shakespeare. Shakespeare, however, is torn: the woman he loves stands accused of murder. In a desperate race against time he must save her from the noose and the realm from treachery.