“I tossed one book onto the fire at a time, slowly, so Horst wouldn’t see me standing around doing nothing. My skin crawled, as if I was consigning little bits of my soul to the fire with each book I threw in. But like smiling at a Nazi dinner party or memorizing facts about the Nazis for tests in school, it was all about the bigger mission. It was all part of the game. If it meant them letting me stick around to steal their secrets so the Allies could win the war, I’d burn every last book in Berlin.”