"Black Room" reflects the story of Osborne Yardley, the father of the world's cryptography during the Anti-Japanese War, who came to the mountain city to decipher the code with Chinese intelligence personnel and catch Japanese spies. The suspense of "Black Room" is stronger and the story is more thrilling. This novel, full of suspense and mystery, is based on a true story that happened in Chongqing, the capital of China during the Anti-Japanese War. The novel is humorous, exciting, bizarre, thrilling, perilous, full of twists and turns, full of suspense, and the plot is mysterious and unusual; every scene is full of dangers, risking death to survive; every character has a special identity and is mysterious.
