The Gadfly is a novel by Ethel Lilian Voynich, set in 1840s Italy under the dominance of Austria, a time of tumultuous revolt and uprisings. The story centers on the life of the protagonist, Arthur Burton, as a member of the Youth movement, and his antagonist, Padre Montanelli. A thread of a tragic relationship between Arthur and his love Gemma simultaneously runs through the story. It is a story of faith, disillusionment, revolution, romance, and heroism. Ethel Lilian Voynich, (May 11, 1864-July 27, 1960) was an English novelist and musician, and a supporter of several revolutionary causes. Her father was the famous mathematician George Boole. Her mother was feminist philosopher Mary Everest, niece of George Everest and an author for the early-20th-century periodical Crank. In 1893 she married Wilfrid Michael Voynich, revolutionary, antiquarian and bibliophile, the eponym of the Voynich manuscript. She is most famous for her novel The Gadfly, first published in 1897 in the United States and Britain about the struggles of an international revolutionary in Italy. This novel was very popular in the Soviet Union and was the top best seller and compulsory reading there, and was seen as ideologically useful; for similar reasons, the novel has been popular in the People's Republic of China as well. By the time of Voynich's death The Gadfly had sold an estimated 2,500,000 copies in the Soviet Union and was made into a movie in 1928 (Krazana) and 1955. According to historian Robin Bruce Lockhart, Sidney Reilly - a Russian-born adventurer and secret agent employed by the British Secret Intelligence Service - met Ethel Voynich in London in 1895. Ethel Voynich was a significant figure not only on the late Victorian literary scene but also in Russian émigré circles. Lockhart, who was also a British Secret Service agent, claims that Reilly and Voynich had a sexual liaison and voyaged to Italy together. During this scenic tarriance, Reilly apparently "bared his soul to his mistress," and revealed to her the story of his strange youth in Russia. After their brief affair had concluded, Voynich published in 1897 her novel The Gadfly, the central character of which, Arthur Burton, was allegedly based on Sidney Reilly's own early life. However, Andrew Cook, a noted biographer of Reilly, disputes Lockhart's version and counters instead that Reilly was perhaps informing on Voynich's radical, pro-émigré activities to William Melville of the Metropolitan Police Special Branch. (wikipedia.org)