Berlin Letters: A Cold War NovelNear the end of the Cold War, a CIA code breaker discovers a symbol she recognizes from her childhood, which launches her across the world to the heart of Berlin just before the wall comes tumbling down. Near the end of the Cold War, a CIA code breaker discovers a symbol she recognizes from her childhood, which launches her across the world to the heart of Berlin just before the wall comes tumbling down. November 1989After finding a secret cache of