Yehiel De-Nur

Yehiel De-Nur, Dinoor or Dinur ('De-Nur' means 'of the fire' in Aramaic), also known by his pen name Ka-Tsetnik 135633, born Yehiel Feiner (16 May 1909 – 17 July 2001), was a Jewish writer and Holocaust survivor, whose books were inspired by his time as a prisoner in the Auschwitz concentration camp. His work, written in Hebrew, tends to "blur the line between fantasy and actual events" and consists of "often lurid novel-memoirs, works that shock the reader with grotesque scenes of torture, perverse sexuality, and cannibalism".

Yehiel De-Nur was born in Sosnowiec, Poland. He was a yeshiva pupil in Lublin and later supported Zionism. In 1931 he published a book of Yiddish poetry which he tried to destroy after the war.

During World War II De-Nur spent two years as a prisoner in Auschwitz. In 1945, he moved to British-mandate Palestine (later Israel) and became a writer-historian survivor who wrote several works in Hebrew, which stemmed from his experience in the camp, under the identity he had been given by the guards at Auschwitz: Ka-Tsetnik 135633 (sometimes listed as "K. Tzetnik"). Ka-Tsetnik means "Concentration Camper" in Yiddish (deriving from "ka tzet", the pronunciation of KZ, the abbreviation for Konzentrationslager); 135633 was De-Nur's concentration camp number. He also used the name Karl Zetinski (Karol Cetinsky, again the derivation from "KZ") as a refugee, hence the confusion over his 'real' name when his works were first published.

He wrote his first book about the Auschwitz experience, Salamandra, over two and a half weeks, while in a British army hospital in Italy in 1945. The original manuscript was in Yiddish, but it was published in 1946 in Hebrew in edited form.

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