<P> As the story progresses, Sophie tells Stingo of her past . She describes her violently anti-Semitic father, a law professor in Kraków; her unwillingness to help him spread his ideas; her arrest by the Nazis; and particularly, her brief stint as a stenographer - typist in the home of Rudolf Höss, the commander of Auschwitz, where she was interned . She specifically relates her attempts to seduce Höss in an effort to persuade him that her blond, blue - eyed, German - speaking son should be allowed to leave the camp and enter the Lebensborn program, in which he would be raised as a German child . She failed in this attempt and, ultimately, never learned of her son's fate . Only at the end of the book does the reader also learn what became of Sophie's daughter, named Eva . </P> <P> Later, Nathan's delusions have led him to believe that Stingo is having an affair with Sophie, and he threatens to kill them both . </P> <P> As Sophie and Stingo attempt to flee New York, Sophie reveals her deepest, darkest secret: on the night that she arrived at Auschwitz, a camp doctor made her choose which of her two children would die immediately by gassing and which would continue to live, albeit in the camp . Of her two children, Sophie chose to sacrifice her seven - year - old daughter, Eva, in a heart - wrenching decision that has left her in mourning and filled with a guilt that she cannot overcome . By now alcoholic and deeply depressed, she is clearly willing to self - destruct with Nathan, who has already tried to persuade her to commit suicide with him . Despite the fact that Stingo proposes marriage to her, and despite a shared night that relieves Stingo of his virginity and fulfills many of his sexual fantasies, Sophie disappears, leaving only a note in which she says that she must return to Nathan . </P> <P> Upon arriving back in Brooklyn, Stingo is devastated to discover that Sophie and Nathan have committed suicide by ingesting sodium cyanide . </P>

What happened to the little girl in sophie's choice
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