The War of the Underground World

Once tainted by it, one would fall into a dream.

Xiao Yun did not retreat.

With a thought, spiritual power formed a pale green shield over the surface of his body, shutting the mist outside.

The pale purple mist writhed over the surface of the shield like a living thing, trying to find a gap to burrow through, but it could not break in.

The Sky Dream Ice Butterfly seemed to grow a little anxious.

Its wings beat even faster, and more mist surged out from within it, condensing in the air into thick clouds that pressed toward Xiao Yun.

But it was still useless. That pale green shield looked thin and light, yet it was indestructible. No matter how the mist battered it, it did not budge.

Xiao Yun did not harm it. With a wave of his hand, a strand of spiritual power turned into an invisible rope, gently coiled around the Sky Dream Ice Butterfly, and drew it into the Medicine Garden in the Pagoda Space. The spiritual energy in the Medicine Garden was a hundred times richer than outside, enough for it to live well.

But the doubts in his heart only deepened.

This underground world was so vast, the spiritual herbs so abundant, the temperature so suitable. There should not have been only a single Sky Dream Ice Butterfly.

Unless—

His Spiritual Sense spread in all directions like an invisible tide, surging over the grass, over the shrubs, over the stream, over the low woods, and toward the deepest part of this underground world.

Then he found it.

At the center of this underground world was an even broader clearing. Tall spiritual trees grew all around it, their branches and leaves interweaving to form a natural barrier. And above that clearing, two enormous masses of