The Hiding Place Author:Corrie ten Boom "I pray that God forgives them..." Corrie ten Boom stood naked with her older sister Betsie, watching a concentration camp matron beating a prisoner . "Oh, the poor woman, "Corrie cries. "Yes, May God forgive her." Betsie replied. And, once again, Corrie realized that it was for the souls of the brutal Nazi guards that her sister prayed.