C250 Hidden interphone
Just when I was feeling confused, something changed on the third day. left in a hurry early in the morning, and told me and Wu Ming to not go anywhere and stay in the cave.
In order to make sure that Niu Dazhu had just left, Wu Ming and I immediately followed him. In order to prevent Niu Dazhu from discovering that we were not following him too closely, Niu Dazhu jogged all the way there