C666 An Abnormal Secret Passage!

Soon after Liu bought the herbs, he started working with Lin Jue and the other two. Half an hour later, all the air vents and the tunnel Liu had dug were completely blocked.

"Alright, you guys go to the surveillance cameras outside and take a look. I'll come out immediately after I ignite the pill furnace!" Lin Jue carried the pill furnace to the side and threw the medicinal herbs into it