Just when Peggy Fitzroy thinks that things might be going her way, what with her father turning up and her ex-fiancé finally out of the picture,  a new problem arises in the form of a mysterious woman. This woman seems to be known by her uncle’s mother, and Peggy believes that she could definitely be dangerous.
The Jacobites are coming ever closer to causing a rebellion that would remove George II and his family. Peggy has pledged her loyalty to the royal family, but events occur which make them doubt her allegiance. She begins to mistrust Mr. Tinderflint, the man who got her the position as a spy in the court. Who is really trustworthy, and who is lying about everything, is the point of this novel of the Palace of Spies series.
I recommend its purchase for those who already have the first two books, but this story can stand alone if the others are not available.