"'I've come on orders from Berlin to fetch the three children.' --Gestapo agent, August 24, 1944. With those chilling words, Christa von Hofacker and her younger siblings found themselves ensnared in a web of family punishment designed to please one man--Adolf Hitler. The furious dictator sought merciless revenge against not only Christa's father and the other Germans who had just tried to overthrow his government. He wanted to torment their relatives,...