C51 A Catastrophe Was Imminent

Soon, we were outside Tu Qingwei's office.

He saw that the door to the office was shut tight. It was pitch black inside, with not a single sound coming from it.

"Tu Qingwei, are you inside?" I shouted. I saw that the talisman I stuck on the security door was still there. I thought that if there was really something unclean that came in here, it wouldn't be able to enter the office