"What's wrong with you?"
Seeing the sudden change in Su Heng's expression, Su Li looked at him with a surprised look.
"I..." Su Heng frowned deeply and told Su Li about what had happened earlier in Heikui Mountain.
After listening,
Su Li's expression gradually became serious.
"You mean that this fog is very likely not naturally formed, but wrought by a demon."
"Fog spirits are troublesome," Su Heng nodded gravely, adding seriously.
Su Li took out the demon-seeking compass from her bosom and injected her strength into it. As expected, the compass, which had shown no reaction before, was now emitting a faint light. Moreover, as time passed, the light on the compass was becoming increasingly crimson.
"Do you know the origin of the fog spirit?" asked Su Heng, wondering if there might be records in the Demon Suppression Bureau.
"There are too many demons in this world. Sometimes their talents seem very similar, but the actual effects are entirely different," Su Li shook her head.