Set in 1792, during the early stages of the French Revolution, Marguerite St. Just, a beautiful French actress, is married to wealthy English fop Sir Percy Blakeney, baronet. Before their marriage Marguerite took revenge upon the Marquis de St. Cyr, who had ordered her brother beaten for his romantic interest in the Marquis' daughter, with the unintended consequence that the Marquis and his sons were guillotined. When Percy found out, he became estranged from his wife. Marguerite, for her part, became disillusioned with Percy's shallow, dandyish lifestyle. Meanwhile, the "League of the Scarlet Pimpernel", a secret society of twenty English aristocrats, "one to command, and nineteen to obey", is engaged in rescuing their French counterparts from the daily executions of the Reign of Terror. Their leader, the mysterious Scarlet Pimpernel, takes his 'nom de guerre from the small, wayside red flower he draws on his messages. Despite being the talk of London society, only his followers and possibly the Prince of Wales know the Pimpernel's true identity. Like many others, Marguerite is entranced by the Pimpernel's daring exploits. The author usually known as Baroness Orczy (the name under which she was published) or to her family and friends as Emmuska Orczy, was a Hungarian-born British novelist and playwright.