In September 1944, Chaim was sent to Auschwitz, arriving at midnight to receive his infamous uniform and tattoo and be placed in a barracks. Chaim was ‘lucky’ to be selected for engineering work for an aircraft assembly plant and could therefore leave Auschwitz, travelling to Nieder Orschel camp where conditions were better. But by mid-March 1945, as the Allied forces were approaching, he undertook an 18-day march to Buchenwald. The camp was liberated on 11th April 1945, the day after he arrived.