Muriel Gardiner's background and her time spent in Austria are the topics of "Code Name 'Mary': Memoirs of an American Woman in the Austrian Underground". With her book, "The Deadly Innocents: Portraits of Children Who Kill," Gardiner studies the lives of 10 kids who kill or attempt to kill.

Yehiel De-Nur spent two years as a prisoner in the Auschwitz concentration camp.  He wrote several books about his experiences there, using his identity number Ka-Tsetnik 135633. His wife Nina served in the British army as a young woman and later helped in the translation and publication of De-Nur's works.*Please note: some sections have been edited out from the original recording due to copyright considerations 

Yehiel De-Nur spent two years as a prisoner in the Auschwitz concentration camp.  He wrote several books about his experiences there, using his identity number Ka-Tsetnik 135633. His wife Nina served in the British army as a young woman and later helped in the translation and publication of De-Nur's works.*Please note: some sections have been edited out from the original recording due to copyright considerations