"We thought we had entered hell." These are the recollections of Auschwitz survivor Mindu Hornick. In an interview with the BBC's Tim Franks, she recalls, in vivid detail, the last memory of her mother who was taken to the gas chamber; the Yiddish-speaking prison worker who saved her life; the terror of selection by Nazi doctor Josef Mengele; and the desperation of hunger, and rations laced with sawdust and bromide.