Only after walking through the passage for a full seven and a half minutes did Fang Yun see a natural cavern inside.
Directly overhead hung a white jade stalactite, thick at the top and narrow at the bottom, with half a drop of milky liquid gathering at its tip.
Below the stalactite lay a small pool a foot across. The cavern was pitch-black, with nothing to be seen, yet the water in the pool reflected the sky.
The images of the sky within were not unchanging. Some places showed clear skies washed a pristine blue, others surging winds and clouds, and still others flashing lightning and rumbling thunder. It seemed to contain a small world.
By Fang Yun's rough estimate, there were over a hundred drops of shadowvoid divine liquid here, whereas only a dozen or so had formed in previous years.
Fang Yun took out the jade bottle the Sacred Academy had prepared long ago, then channeled his literary qi and drew all of it into the bottle.
Under the rules of the Three Valleys Battle, the victor owned all the shadowvoid divine liquid and could also sell it to the Sacred Academy.
After putting away the shadowvoid divine liquid, Fang Yun examined the cavern carefully. He then noticed that one wall seemed to have cracked open, and a strange aura was seeping out of it.
Information recorded in the ancient demon inheritance told Fang Yun that this was a special spatial rift.
Understanding dawned on Fang Yun's face.
The demon barbarians had once found two locations from which they could continuously transmit power here through blood sacrifices, improving the quality of the shadowvoid divine liquid. This year marked the first great harvest, and from this year onward, every year would be the same.
Originally, the demon barbarians had