After hearing what Professor Bai said, Si Kongchen stayed silent for two seconds and then said, "So, we're gonna have to wait for another half a month to take action?"
Professor Bai nodded and said, "The zombie virus drug that I gave you has an incubation period of five to seven days. So, you can take action in ten days. About half a month after that, the drug will start to kick in and the underground creatures will start launching attacks at the same time. Facing those two problems at one time, I bet even Wu Chengyue will be caught off-guard."
Lin Qiao heard their conversation expressionlessly as she figured that Professor Bai might have been studying underground creatures since a very long time ago. The experimental subjects in his lab were larger than the ones in the labs near the entrance, meaning that they were at higher levels.
