The Hiding Place Author:Corrie Ten Boom;John and Elizabeth Sherrill Corrie ten Boom stood naked with her sister Betsie, watching a concentration camp matron beating a prisoner."Oh the poor woman," Corrie cried. "Yes. May God forgive her," Betsie replied. And again, Corrie realized that it was for the souls of the Nazi guards that her sister prayed. Both women had been sent to the camp for helping the Jews.