"By the way, Young Master Chen, do you know how the Xiling Mine was formed?" or Uncle Mo broke the silence first and said.

"How was it formed?" asked Yu Chen, his voice echoing in the empty cavern.

"Do you remember what I told you about the fairy spirit stones? fairy spirit stones can fight back powerful impacts, so they are usually used to seal something. Tens of millions of years ago, in this Xiling Mountain, there was a supreme powerhouse who regularly sealed a great demon with a fairy spirit stone. However, the stars have changed, time has passed, and even if it is as tenacious as a fairy spirit stone, it can't experience the passage of the world. For thousands of years, the fairy spirit stone has been immersed in the demonic energy of the demons, and gradually faded its own counterattack power, but its own strength and toughness still exist. Therefore, people named it 'Tin Spirit Stone', which was widely used in refining and cultivating. Uncle Mo spoke eloquently, and did not shy away from Yu Chen's fourth uncle Yu Haohong, who was at the end.

"Is there still any demonic energy left on the Xiling Mine?" asked Yu Chen.

"No, the tin spirit stone is only degraded by the immortal spirit stone using all the power of counterattack, but even if there is no power to counterattack, this kind of immortal thing is not something that demonic qi can invade casually. And if there is still demonic energy on the tin spirit stone, how can it be used so widely by people?" Uncle Mo walked in front and said.

"By the way, division... Uncle Mo, what is the so-called 'demon'?" Yu Chen realized that the master was still like Uncle Mo now, and hurriedly changed his words.

"Demons are the embodiment of evil in the world, they use demonic energy to cultivate, and the Dao methods they cultivate are all evil, crazy, and bloodthirsty, and the so-called ones are not tolerated by our human race. It is said that in ancient times, there were some big demons who had the law of the demon race through the heavens and the earth, and they did not lose the power of our human race at all, so after tens of millions of years, most of them were either killed or sealed. However, this Hongmeng Continent is said to have no demons at the beginning, and the demons were born out of greed, anger and other evil thoughts, I don't know if it's true or not. Uncle Mo pinched his chin and said, this is a common gesture used by the ghost master.

"Chen'er, wait a minute. As the two were talking, Yu Haohong, the fourth uncle who was walking at the end, suddenly spoke, and in this environment, Yu Chen was really startled.

"Fourth uncle, what's wrong?" Yu Chen wondered.

I saw Yu Haohong walking near the stone wall and gently touching a stone on the stone wall. This stone is not a tin spirit mine, but it also emits a little light, which is quite magical.

"Chen'er, you take this stone out of the stone wall. Fourth Uncle Yu Haohong turned around and said to Chen.

Although Yu Chen didn't know why, he still did it. He used his spiritual power to wrap the stone and gently removed it from the rock wall.

This stone is not big, just an ordinary stone, and the light is not the stone itself, as if there is something in it. And Yu Chen is still very familiar with this light.

"Crush this stone. Fourth Uncle Yu Haohong said calmly.

As soon as Yu Chen manipulated the spiritual power, the stone shattered into powder. The light from the stone shot out and shot into the depths of the cavern. The light was a little cold, like a sword.

Yu Chen finally recognized that this was Starlight!

"Earth ghost senior, please explain it to Chen'er. Yu Haohong looked at Uncle Mo in front of him and said, his tone did not fluctuate in the slightest.

"I guessed that you had already found out, after all, ......," Uncle Mo said, turning around.

"After all, you are also my favorite former apprentice!"

"Is the Earth Master really related to my Yu family, or is your earth ghost the one who wants to find my Yu family?" Yu Haohong said softly.

"Hehe, you know me, I never look for someone I don't like. But this kid does have a relationship with the Earth Master. The earth ghost looked at Yu Chen and said.

"That's your business, I don't want to intervene and I can't, now, please help me talk about this light. Yu Haohong made a gesture of resignation, obviously not wanting to speak anymore.

"Hmph. The earth ghost was a little angry at Yu Haohong's actions, obviously something unpleasant had happened between the two before.

"This light is the light left by the blow of the Tiangang Sword Formation of the Ancient Town Suppressing Great Demon. You should know that the spirit array is a spirit formation by the spirit array master to condense the spiritual power into a spirit seal, and then the spirit seals collude with each other to form a formation to achieve certain effects. This place is the place of sealing demons, you also know, the ancient great power used the magic power of the heavens, and used the thirty-six sects on the ground to condense the power of the thirty-six heavenly gangxing stars in the sky, and gathered them in the formation to form a sword momentum. The sword points to Xiling Mountain, if there is a change in the big demon, the formation will be activated, and the divine sword will punish the demon. Judging from this stone, this large array was obviously activated, but unfortunately it did not kill the evil demon, but instead let it enter the Fengmo Mountain Great Array and destroy the thirty-six sects. The earth ghost master frowned and said.

"The formation that colluded with the power of Tiangang didn't kill the evil demon, and it was destroyed by it in the formation, how terrifying is this evil demon?" Yu Chen felt a chill in his heart.

At this moment, a scream suddenly came from the depths of the mine, which was particularly piercing in the hollow mine.

This scream didn't look like a human sound at all, which made Yu Chen feel shocked.

"Yu Chen, quickly receive your fourth uncle into the Heavenly Training Bead!" The earth ghost condensed the aura of the Xuan Ming and drank it.

The situation was urgent, Yu Chen didn't ink, and directly took out the Tianxun bead and said to the fourth uncle: "Fourth uncle, this bead is very safe, you go in and wait." ”

"Hmm. Yu Haohong did not hesitate and went directly into the pillar beads.

Then Yu Chen also used the Xuan Yin Qi with both hands and prepared an attack posture.

The master and apprentice just took a good stance, but after that scream, there was no movement, and the silence around them returned to the same as before.

"Master, what the hell was that just now?" Yu Chen asked carefully.

"It should be that light just now that inspired some of the consciousness left by the ancient demon or something, let's continue to move forward, or not, Yu Haohong called out, I don't know what danger will be waiting for us ahead." The earth ghost commanded Yu Chen, and continued to walk forward.

"Yes!" Yu Chen replied softly and followed behind the ghost master.

In the empty cave, only the footsteps of their master and apprentice echoed.