Auschwitz

Background
Auschwitz was a series of camps in Poland where Jews and other "undesirables" were executed in gas chambers by the Germans during World War II.

Key Events
Max Klein was an inmate at Auschwitz who survived the war. It was on a road leading away from Auschwitz that Erich Radek threatened to kill Irene Frankel. Gabriel Allon took Radek back to the area after capturing him in Vienna.