" As she walked, the horror stories she'd heard from Felix and the others became real. This is what their underground efforts were fighting against. These camps, these guards, were reality to thousands of people... Reality to the person who had just made the trip up the chimney. If they did not stop this madness, it would be the end of them all. "

― Tricia Goyer , Night Song: A Story of Sacrifice (World War II Liberator #2)