This story came together from several sources of inspiration—the ballet Giselle itself, of course, as well as the 1920s song “Pirate Jenny” from the The Threepenny Opera, by Kurt Weill and Bertolt Brecht in collaboration with Elisabeth Hauptmann. Both of these are excellent revenge stories—highly recommend! I’d also recently learned more about the extremely exploitative nature of the lives of young ballet girls in 19th century Paris, when the ballet Giselle debuted.