C1287 Heart Demon(part Ii)

When Chu Yan stepped past the bronze door, he could not help but frown and muttered: "Why is it so thick?"

Smoke billowed in front of him.

It was not the kind of black smoke that had an evil aura soaring to the heavens. It was more like the light smoke that came out when a piece of firewood was being burned.

However, the smoke had no temperature and didn't choke people.

Otherwise