Zu An was quick to reassure her. “It might not be blood. It might just be red because of the presence of oxidized iron.”

“Oxidized iron?” Pei Mianman froze, a blank expression on her face. 

“You can think of it as rusted iron.” Even though Zu An was trying his best to comfort her, he didn’t have much confidence in his own explanation. Was this really the result of oxidation?

Pei Mianman said, “Regardless of what it is, we still need to remain alert. This sort of secret dungeon is probably full of dangers.”

This was actually common knowledge in the cultivation world. It was easy to see if a secret dungeon was dangerous or not just from its environment. If it had gentle breezes, bright beautiful sunlight, green hills and clear waters, it was probably a relatively peaceful dungeon. Even if the core of the dungeon was slightly more dangerous, it would be perfectly manageable as long as one  did not venture there.

The environment of this particular dungeon was anything but that.

The two of them proceeded carefully, because it was all too easy to get lost within the dense greenish-gray mist. There was no way to distinguish north from south, east from west. The two of them could only proceed forward cautiously, one step...