I didn't really know what the pass looked like, but Liu Li certainly did. Several of us slowly descended along the corridor. The whole corridor was incomparably silent, walking carefully, and I looked around from time to time. The whole building is full of police, originally they would not attack us. But the longer we entered this building, their attitude towards us gradually changed and they began to attack us constantly, to put us to death. "We must leave quickly, if we stay in this police station for a long time, we will be assimilated by them. When the time comes, we won't be able to leave if we want to." Liu Li said. "Well, we must try to find the pass by all means." I said, while starting to patrol among the offices. There are several offices on the fifth floor, and I searched one

