Baroness Emmuska Orczy (1865-1947) was a British novelist, playwright and artist of Hungarian noble origin. She was most notable for her series of novels featuring the Scarlet Pimpernel. Some of her paintings were exhibited at the Royal Academy in London. In 1903, she and her husband wrote a play based on one of her short stories about an English aristocrat, Sir Percy Blakeney, Bart., who rescued French aristocrats from the French Revolution: The Scarlet Pimpernel. This theatrical success generated huge sales for the novel that followed. She went on to write over a dozen sequels featuring Sir Percy Blakeney, his family, and the other members of the League of the Scarlet Pimpernel, of which the first, I Will Repay (1906), was the most popular. The last Pimpernel book, Mam'zelle Guillotine, was published in 1940. None of her three subsequent plays matched the success of The Scarlet Pimpernel. She also wrote popular mystery fiction and many adventure romances. Her Lady Molly of Scotland Yard was an early example of a female detective as the main character. During the First World War, Baroness Orczy formed the Women of England's Active Service League, an unofficial organization aimed at the recruitment of male volunteers for active service. Her aim was to enlist 100,000 women who would pledge "to persuade every man I know to offer his service to his country." Some 20,000 women joined her organization.