Coldness flashed in Chu Han's eyes. Hu Menghan had killed Professor Cao in his previous life, but Wei An had killed his brother a day earlier. If Hu Menghan knew about that, he would become dead set on taking revenge. Chu Han was destined to get in Hu Menghan's path in this life.
The two researchers came back to the lab and looked around with strange expressions.
"Nobody?"
"Let's go in and check."
To be assured, the two researchers approached a black common-looking door in the far end, which seemed to be a little damaged. When they opened it, a small room with cleaning products appeared, but they pressed a button, and the wall moved, revealing another door with a password lock.
Chu Han became dejected as soon as he saw another password lock. It looked like the most important place in the entire lab. As Chu Han had no time to think, he hurried to look through the cabinet's gap. He held his breathing while looking at the two people's actions.
