After three days outside the Tongmen Gate, Yechen waited for three days without eating or drinking. He staggered to his feet and left step by step.

Nothing happened in these three days, either inside the copper gate or in the cave. It was quiet as death. Sometimes the sound of raindrops came, but it was unusually dry inside the cave. I don't know when it started. Yechen found that no matter how the outside changed, the time in the cave seemed to stop. It was not the wrist watch that was moving, and the cave entrance was changing with each passing day. He really thought these three things were happening....