C339

"How can someone discover such a hidden place?" Li Hu raised a particularly critical issue.

This was also what Nuo Fei was paying attention to.

"I've thought about this question before, but I'm guessing that it's someone from our department who leaked the information." Nuo Fei said.

"Let's not think about this for now. Do you have any surveillance videos here?" Li Hu asked.

"Yes