Though stone walls surrounded them, above was a stretch of blue sky and white clouds. It was not an illusion, but the formation reflecting the real sky outside at this moment.
The sound of rushing water reached their ears. Another long river had appeared here, though it was no longer that dazzling, resplendent river.
This river was also the center of the space, occupying most of the entire cave. Only narrow stretches of open ground remained on either bank, likewise covered in stones of all sizes.
The river water was crystal clear, washing the stones along the shore spotlessly clean.
"This... this is a small spiritual vein?"
A voice came from Li Yan's front-left. It was Ming Qi's voice. At this moment, she and Ming Yu had transformed back into two graceful women.
Yet both women's pretty faces were pale as paper, utterly bloodless.
After suffering injuries in succession and then using secret arts like this, if their fleshly bodies and internal organs had not been so resilient, they might not even have been able to stand normally by now.
Feeling the dense spiritual energy continuously bubbling forth from the river like underground spring water, Li Yan's eyes flickered with light as well.
"The grade of the spiritual vein beneath this river... is truly high!"
Li Yan followed up, countless thoughts rapidly flashing through his mind.
"What a pity. If we wanted to take this spiritual vein away, we would probably be discovered the moment we left the secret realm!"
Ming Yu stared carefully below, a strange light flickering in her eyes as well. But regret soon appeared on her face.
With the strength of the three of them, they could already move mountains and fill seas. Moving a spiritual vein naturally would not be a problem.
However, if a