With the approach of the Soviet Army, the prisoners of the camp were taken dAuschwitz Germany. The survivors of this exodus were liberated by the Americans. The majority of survivors stories tells this sad saga. Were left to Auschwitz, critically ill unable to be moved. Among those there: Primo Levi recounts the journey of the few survivors with the Russian army. This unique witness (to my knowledge) is exceptional both for its quality and its rarity.