Story of Enrica Calabresi, Jewish scientist, a zoologist. Enrica graduated very young and worked first at the Specola and then at the agricultural university of Pisa. Born in the early 1900s, when there were very few women at university, she managed to become secretary of the Italian entomological society. An educated woman. He also publishes in English and knows French and German. Among her students also Margherita Hack who remembers her in her autobiography. But there are two wars to get in the way. The first where she loses her boyfriend, Giovanni De Gasperi, speleologist, botanist, explorer (land of fire) who, like her, frequents the Specola who died in 1916 and which will lead to the first crisis. Enrica leaves the university for two years and goes to work as a nurse at the front. And then the second with the racial laws. Thrown out of the university she will teach at the Jewish school in via Farini. She will always refuse to hide also because she does not want others to risk their life for her. He could have saved himself. He could have taken refuge in Switzerland as his brother did with his other sister but she remains in Florence. A brave woman. Alone and Jewish in Fascist and Nazi Florence. A dignified woman She is captured, taken to Santa Verdi and takes her own life by poisoning herself before leaving for Auschwitz. Enrica's life flows through period material, first in Ferrara then in Florence and Bologna where the Calabresi family home is still located today and where her beloved nephew Francesco, a precious and lucid witness, lives, now ninety years old.