Wang Miao, a typist at the Tianjin Special High School, was called a traitor by everyone. No one knows that her code name is "Shen" and she is a key to the Eighth Route Army's secrets buried deep in enemy camps. When the top-secret information "Operation Yamamoto, November 7, Tianjin Port" came out from her fingertips, she disappeared immediately, like a dumb bomb sinking to the bottom of the sea. No one found her except the typewriter with its polished keycaps.
