C904 Internal meridian of emperor

The Tang Sect had a history of over a thousand years and had researched countless poisons. However, it had never been possible to study a poison that could be spread to others!

Now, Leng Bingyan had said that the Tang Sect was researching a type of infectious disease poison. This kind of poison, as the name implies, could be spread.

Leng Bingyan could feel Xiong Yu's shock