Regarding Lin Yu's question, the performance of the Great Mountain Demon was also unexpected.

It shook its head, then said slowly.

"Actually, I don't know, although I once sensed the existence of this passage, but it was hidden in the crevices of the rocks, and it never appeared."

"But this is a man-made passage, and you don't claim to have lived here for thousands of years. Why is it not even clear about this? ”

"I'm not lying, but this place, the age of existence, is much longer than my lifespan! Young man, have you ever heard that on this phantom beast continent, there used to be a Order, an ancient kingdom ruled by spirit beasts? ”

Lin Yu frowned and thought for a while, then shook his head.

"I've never heard of that, and all I've seen for as long as I can remember are people! Even if there are differences between countries, it is all human beings who rule and manage them! ”

"Yes, it's a human world now, but thousands of years ago, it wasn't necessarily like that! At that time, the strength and wisdom of the spirit beasts were much stronger than those now! ”

The mountain demon said as he pointed to the nightmare mantis beside it.

This pair of spirit beasts is like this, the former has an extremely long life span and is extremely intelligent, while the latter is like the same class of spirit beasts, with low intelligence and unable to communicate with people normally.

"In other words, thousands of years ago, the spirit beasts that lived on the continent were all like you? Even the passage here may have been built by spirit beasts? ”

"Admittedly!"

The big mountain demon nodded slowly, agreeing with Lin Yu's words.

"That's a bit unbelievable, it turns out that you're staying here just to guard this ancient ruin?"

"It's not all, this place was the territory of our mountain demons a long time ago, and our home and lair are in this underground area, but because of the changes in time and terrain, now this place has become an occasion for people to grab resources, and I, only this place can be moved."

"And what about those star iron ores? Those are what people found out later, and it stands to reason that those should also be your wealth? ”

"That's true, in our mountain demon clan, in order to hone themselves, the young mountain demon will use star iron ore to sharpen their claws and horns, it is the stone of our clan!"

Lin Yu pursed his lips, a little disappointed.

He originally thought that a race full of wisdom like the mountain demons could use these star iron ores to do other things, but he didn't expect that they would just use these stones to sharpen their nails and horns.

It seems that there is still a gap between the wisdom of the mountain demon and that of humans, and it may also be that the old mountain demon in front of him is the only one with superior wisdom.

"There's no way back, so we can only continue from here, old mountain demon, are you okay?"

"Of course not, only you are the strongest here, so we will respect your opinion!"

Different from the cunning and old way at the beginning, the old mountain demon at this time seemed to be much more obedient, probably because he had seen his strength, so these two spirit beasts that were originally hostile to him were now extremely docile and obedient.

It seems that whether it is in front of humans or spirit beasts, strength is the eternal king!

So, Lin Yu then took the three spirit beasts and walked towards the depths of the pit.

The road here has a long transition from the smooth stairs at the beginning to the rugged trails covered in dust and gravel.

Without any interference, Lin Yu felt that the temperature around him had gradually turned cold and suffocating from the beginning to a suitable one.

"Further down, there's a good chance there's an underground river, because I already smell the dampness!"

The old mountain demon suddenly spoke, and Lin Yu also felt that the air around him seemed to become a little humid, and at the same time, the passage was no longer suffocating, but became much cooler.

This is an impermeable underground, and there is only one possibility that this situation can occur, and that is that there must be a huge cavity in front of them, and there is an active underground river in it.

The presence of underground rivers indicates that there may be a way out at the source or downstream of the watershed.

As he walked, a strange thought suddenly arose in Lin Yu's heart, he looked around the cave and suddenly asked.

"I have a question, when I was outside, I saw that the Thunder Domain was already very close to me, but why couldn't I feel its presence when I went underground? Could it be that the scope of the minefield's influence can only be on the ground part? ”

"There is indeed such a thing, but the thunder domain here in the Cangfeng Plain, its range of influence can reach deep underground. It is true that people can dig a way through the minefield from underground, but the cost of doing so is quite large! In addition, the reason why we haven't encountered the Minefield yet is just because, underground, the sense of direction may be lost, but for our Mountain Demon Clan, this never exists! ”

"It's true that since I've been underground, my sense of direction has been of no use at all, after all, there is only one road here. Also, the scope of the minefield's influence must be quite extensive, right? It should not be a line, but a ring, or even a belt around the Cangfeng Plains! ”

"Admittedly!"

The old mountain demon once again recognized his conjecture, Lin Yu still didn't like the way it was said, and always felt that this old thing was putting on a shelf.

Although he still has a lot of questions in his mind, he doesn't plan to say them all, and some things can't be answered reasonably after asking once, but only after his own experience and personal experience can he find the answer.

The path they passed through was not all smooth sailing, from the silence at the beginning, gradually began to feel the situation around the ground.

After walking for a long time, Lin Yu found that some miserable white bones began to appear on the road they passed, which were wantonly discarded on the side of the road, some protruding from the ground, and some were buried under the dust.

After a little inspection, he found that most of these abandoned bones were human.

"The dead of mankind, the lonely ghosts howl here, and if you close your eyes, you can hear their voices."

The old mountain demon spoke at the right time, Lin Yu glanced at it suspiciously, and then closed his eyes according to its words.

Sure enough, as it said, as soon as the eyes were closed, in addition to the darkness in front of them, there was a crimson light in the dark, which was in the distance.

Lin Yu drove his consciousness and probed towards those red lights, and soon, he saw the essence of red rays.

It was a figure sitting alone in the dark, his body translucent, but glowing red.

"Good...... It hurts, Lord Shenlong, please forgive me! Please forgive me! ”

The illusory figure vanished after saying that.

Lin Yu immediately opened his eyes, and his expression became a lot more puzzled.

"What do you see?"

"A man with a red body that looks like a dead soul."

"He is an ordinary person who lived in the realm ruled by spirit beasts thousands of years ago, and these people, they all have the same name and the same identity."