The world fell into eternal night within seventy-two hours. A black substance called "eclipse" silently covered the sky. All electronic equipment failed, and humans who had made sounds disappeared one after another. The survivors discovered that absolute silence was necessary to survive, and that whispering meant death. Lu Chen searched for his missing sister in the dead city, followed the last clue she left - a note that said "They are talking below", and walked towards the unused abandoned branch line deep in the subway. There was no light there, but the voices of people talking could be faintly heard, and all the people who went into the darkness to seek companions never came back. Lu Chen must find out the truth behind the devouring sound in this ruins ruled by silence, and whether his sister is still alive.
