Black Formula

Following Zhua Qi and the others, Shi Yan headed straight for the Yin Valley.

Zhua Qi proved his value along the way by removing those odd plants and brutal demon beasts.

Zhua Qi turned out to be the co-master of the Dead Swamp, for he even knew this area, the Yin Field, far better than Chi Xiao.

All along the way, Zhua Qi removed all the obstacles easily. In doing so, Chi Xiao and Xia Xinyan could save their energy for the fight with the Nine-headed Sky Snake.

The nearer they got to the Yin Valley, the more they could feel the Yin Qi.

Gradually, Shi Yan could feel his Profound Qi flowing slower and slower; his ribs and bones were experiencing immense pressure from the Yin Qi.

So did Zuo Shi.

The nearer they came to the Yin Valley, the more pale her face became. Apparently, she wasn't able to adapt to the atmosphere there either.