After he walked in, there were only a few monks who stayed behind, and they all dispersed, vigilant in all directions.

Below the portal of the stone platform is a stone ladder, all the way down, I don't know where it leads.

The stone ladder is obviously man-made, flat and smooth, even after years of erosion, it is still as firm as ever.

There were seven or eight people in a group, the two real lakes one in front and one behind, and the Yunhejing people in the middle, all of them tiptoed like cats, and there was no sound when they walked.

The passage to the bottom is not crowded, enough to accommodate seven or eight people walking side by side. The further you go down, the darker the light, but everyone is considered successful in cultivation, and they have enough spiritual power in their eyes, which does not affect the observation of the four directions .

Ying Wuji, who was leading the way, did not hide his body, and stopped and walked, as if he had discovered something.

Lu Ye, who was following behind, soon knew what he had found. Passing by where he had stopped, Lu Ye clearly saw some strange stone carvings on the stone walls on both sides of the passage.

The patterns of the stone carvings are not uniform, and they appear to be arbitrary. Some are flowers, some are swords and guns, and some are figures and beasts.

It seems that it is something left by the owner of this place at will in the long time ago, and it does not contain any special information.

However, among all the stone carvings, the one that appears most frequently is the big sun in the sky, and in this kind of picture, there are many figures kneeling on the ground and prostrating.

Regardless of the origin of the owner of this place, judging from the picture alone, it seems that he worships the great sun in the sky.

All the way down, I don't know how far it goes.

Until a certain moment, a low cry came from ahead, and Lu Ye, who was walking at the back, couldn't help but quicken his pace.

The moment he stepped out of the stone ladder, Lu Ye couldn't help but feel a little absent-minded.

Looking around, there is a huge karst cave in the depth of nearly a thousand feet underground. This karst cave is so big that you can't see the end at a glance. In the positions like ditches, fiery red magma flows and surges like a river. The shining light clearly imprinted the scene in the cave into everyone's field of vision.

What surprised everyone was not the vastness of the cave, but that there was a city-like existence in the cave!

Row upon row of houses of different heights and rough styles are scattered in various locations of the city. These houses are all hewn out of hard stones. Many of them collapsed due to disrepair, and only a few are intact.

In this underground cave, there is an ancient city!

The city is criss-crossed, with magma flowing ditches, just like the city's moat.

Judging from the scene in front of me and previous experiences, no one has lived in this city for many, many years.

But what makes it hard for everyone to imagine is who is living in such an environment!

Even in a real lake environment like Ying Wuji, it is impossible to stay here for a long time. He has to mobilize his spiritual power to resist the scorching heat of the surrounding environment at all times, which consumes a lot of spiritual power.

It was unbelievable to suddenly see a dilapidated city in such a location.

"What's on it?" Suddenly a monk looked up at the top of his head.

Above everyone's heads, there is naturally an underground rock wall, but because of the environment, they are all smoldering and red, but on that rock wall, at intervals, there are little lights shining continuously.

Ying Wuji and Lu Ye flew up at the same time, and soon they returned, each holding a fist-sized irregular crystal in their hands.

"Fire stone!" Ying Wuji was stunned.

Most things like spirit stones have no attributes, but there are also many special environments that can breed spirit stones with special attributes.

In this way, the environment is extremely hot, and the fire spirit is strong and active, and it is possible to produce fire spirit stones after many years.

This kind of thing is of no use to ordinary monks, but for a monk who has practiced the fire system like Lu Ye and whose spiritual power is fire, using this spirit stone to practice is much more efficient than using ordinary spirit stones. JrNovels.com