The Angel of the Revolution is a science fiction novel that tells the story of a group of terrorists who conquer the world through airship warfare. Led by a crippled, brilliant Russian Jew and his daughter, the 'angel' Natasha, 'The Brotherhood of Freedom' establish a 'pax aeronautica' over the earth after a young inventor masters the technology of flight in 1903. The hero falls in love with Natasha and joins in her war against society in general and the Russian Czar in particular.