Abstract This article is about German-Jewish author Anna Seghers (1900–1983), who spent half of her productive life in the German Democratic Republic (East Germany). Though Seghers is known for her works from the 1930s and 1940s such as The Seventh Cross (1942), about a prisoner who escapes from a concentration camp, little has been published about her writings under communism, after she returned from fourteen years of exile, having survived National Socialism while active in the resistance. Her mother and aunt were murdered in the Shoah, and Seghers ostensibly discontinued addressing the National Socialist German past once the GDR was founded (in 1949). However, as this article demonstrates, her ‘socialist realist’ novel, Die Entscheidung (1959), complicates this seeming erasure of Seghers's Jewish identity, which can be seen not only in response to the increasing antisemitism in eastern Europe during the Cold War, but also attests to her actual and continuous—albeit ‘hidden’—engagement with the Jewish culture and history of her childhood and youth. Through the autobiographical character Herbert Melzer, it becomes possible to identify secret references and allusions to the Dead Sea Scrolls, first discovered in Qumran in 1947–1953—the same time at which Seghers set the novel. While she was confronted with surveillance, travel restrictions, and censorship, Seghers maintained her own personal exploration of Judaica, as evidenced by her published letters and the contents of her personal library (now the Anna Seghers Archive). This article argues that Seghers persisted in retaining and expressing her original Jewish self-identification through fiction, even in this, her seemingly most ‘socialist realist’ novel.