It had been made clear that for security reasons Mankowska should not expect to be contacted directly by German intelligence during her internship with the Foreign Ministry. However, the guidelines for it had been planned in advance. During her two-month internship she would be provided with her own desk and she would be permitted to take her own notes. Information about the imminent invasion the Soviet Union - some of the information - would be made available to her. But that was far from being the only topic on which she would become better informed.   Two days after the internship began three million German soldiers crossed into the Soviet Union on a mission of conquest.   That day Dolf von Scheliha placed several folders market "secret" on Mańkowska's desk in the ministry.   They did not concern the invasion.   It appears they were preliminary detailed plans for the extermination of Europe's Jews.   There were indications of the number of people to be packed into ghettos, the most effective ways of implementing mass-killings, transport planning and of plans to create a "death factory" near Warsaw at Treblinka. Mańkowska saw these planning documents six months before the Wannsee Conference at which the various government departments were presented with them.   She herself later stated her belief that she had been the first foreigner to learn that the German government were planning mass-murder on a truly unprecedented scale.   Despite the times and events through which she lived, Klementyna Mankowska always maintained a resolutely positive view of human nature, but as she would write many decades later in her memoirs, faced with the evidence of the Holocaust plans, she was forced to recalibrate her optimism.