C317

A few minutes later, there was a knock on the door; I was not in a hurry to open it, but stood behind it and looked through the peephole. There were four or five people standing at the door. They were all in suits and shoes, and I didn't recognize any of them.

"Jiang Xiaofo? I am Officer Zheng Weigong from Security, I know that you are looking, here is my certificate, please open the door