Chapter 721: Yin Spring

Yi Yun looked down from high in the sky and he discovered that there were nine rivers in the pine forest. These nine rivers winded around and they eventually converged in the center of the pine forest.

Here, there was a lake that wasn't very large. It looked like a beast's eye from high in the sky.

The nine rivers constantly provided it with spring water, but this lake was less than a kilometer in radius. There was no outlet, so it was unknown where the water flowed to.

After watching it for a while, Yi Yun suddenly had a feeling that the nine rivers were like nine flood dragons that revolved around a dragon pearl.

This is…

With a sudden thought, Yi Yun probed his perception underground!

Previously, Yi Yun's energy vision was radiated in all directions so as to search the pine forest quickly. But now, Yi Yun reduced the scope of his energy vision. Most of his spiritual energy was used to probe underground.