After completing the distribution of the loot, Yan Xu and the others moved forward again, after all, only half a day had passed in two days, who knew what they would gain, and then we would see how their luck was, so the morale of several people was not bad, although they were blocked by the green glue monsters that appeared in a pile, but a few people still stopped until it was dark to find a place to camp.

Yan Xu and they brought dry food, so they didn't need to hunt, not to mention whether there was anything to eat in this ghost place, so they just found an open space and lit a bonfire and finished it, and then Chen Da and Guo Shou took over the vigil, Yan Xu didn't shirk, nodded and went to rest with the tiger girl, that is, by the fire, as a spiritual cultivator, the physical fitness is still good, and it is not so easy to get sick.

Feeling the heat provided by the fire, Yan Xu slept with peace of mind, and after Chen Da discussed with Guo Shou, he kept watch for the middle of the night.

Although the vigil was a little uncomfortable for a half-grown boy like them, the two of them still kept their eyes wide open, and they didn't mean to be careless.

As a squad, everyone must play their part, even if they think they have played a role, which helps the unity of the squad, which is why Yan Xu did not hesitate to go to sleep, and Chen Da and Guo Shou insisted on keeping vigil.

There was no word for a night, and the next day Meng Mengliang and a few people set off again, because this was the last day they could stay, although yesterday's harvest was not small, but no one would have too many treasures, not to mention who didn't want to see the legendary secret treasure, so although they didn't have a good rest, a few people still continued to explore with vigor.

This time Yan Xu found another shortcut, I don't know how many years this secret realm has been in the hands of Green City, the students of the academy, the disciples of the family, have already swept this land hundreds of times, just like the previous martial drum, Yan Xu didn't believe that he accidentally encountered the golden needle bee and the golden jade fruit tree, after all, the pot-bellied jade bottle containing honey and the knife that intercepted the branches were not like the necessities he carried.

Therefore, Yan Xu plans to go underground along the crack in the ground that Guo Shou stumbled upon, there must be danger, but it is better than wandering around all the time.

The soil layer above the crack is still very wet, and the fault of the crack is also very fresh, obviously this crack has not appeared for a long time, which represents an unknown territory waiting for Yan Xu and them to explore, so there is almost no hesitation, since they have started to prepare.

This time, the pathfinder was replaced by Guo Shou, as a spiritual cultivator of the ghost system, dark vision is a must, and Guo Shou can also faintly perceive the existence of lifeforms, in a narrow and complex underground environment, he is more suitable for pathfinding than a tiger girl, which is also the benefit of teamwork, no matter what situation you encounter, you can always have the means to respond.

When they first drilled into the crack, it was still a little narrow, but it didn't go far before it became much smoother, and Yan Xu and the others were able to light more torches.

"Huh, this looks like a mine. Chen Da seemed to have discovered something, touched the stone wall on one side and said to Yan Xu.

Yan Xu walked over to take a look, sure enough, the stone wall was full of traces of artificial excavation, he buckled down a stone, and looked at it by the firelight, and could see the reflection of the stars, but the fire was not suitable for observation, and Yan Xu couldn't tell whether it was some kind of metal ore or a reflection of quartz.

At this moment, the queen bee who had been lying on Yan Xu's shoulder suddenly flew over, and actually lay on Yan Xu's hand and gnawed on the ore.

Although the Golden Needle Bee Queen is not aggressive, it is a special spirit after all, their bodies show metallic characteristics, and similar elements need to be added to the natural diet, otherwise how to grow, so Yan Xu is sure that this is a mine for mining some kind of metal.

Yan Xu collected a few pieces of ore and chose to continue going deeper into the ground, anyway, they couldn't go back with a basket of ore.

After passing through the crack that should have been formed because of the collapse, this is already a fairly flat cave, and there is some kind of luminous ore embedded in the wall every other distance, which makes Yan Xu and the others have been guessing who dug it here, could it be that there is still some kind of intelligent creature living in the secret realm?

However, Yan Xu and the others are obviously overconcerned, there is indeed some kind of intelligent creature here, but they have long since disappeared, otherwise it is impossible for no one to find it until now, even if they are living underground.

The mine was kept very intact, there was no problem with air circulation, and no danger was found, so Yan Xu and the others quickened their pace and soon came to the depths of the mine.

Here is a natural karst cave, along the stone wall to dig several layers of stone caves, large and small there are hundreds, look like a beehive, and there are obvious traces of artificial traces of the pool and canal in the cave, can meet the drinking of thousands of people, it can be seen that there were many intelligent creatures living here.

Those stone caves should be used for habitation, and there are a lot of traces of life left in them, and Yan Xu and they also found a large number of some kind of fat mushrooms that should be edible around the cave.

But these have long been left behind in the long river of time, and a rough judgment shows that this place has probably been abandoned for hundreds of thousands of years, and the intelligent creatures here have been wiped out long before this secret realm was discovered by Oz City.

"There's a mural here. Guo Shou, who was in charge of guarding, suddenly stopped, touched a flat stone wall around him with his hand, wiped off the dust and revealed the pattern on it, turned to Yan Xu and said.

Yan Xu walked over, tore off a sleeve, and carefully wiped the dust off the stone wall, revealing the entire pattern inside.

The pattern is very simple, just like a stickman, but it can still be seen that the creatures that originally lived here were humanoid, and may even be humans, and had rudimentary intelligence, at least knowing how to mine and plant, and even faith.

After reading it, Yan Xu's face was not very good-looking, because he had a terrible discovery, these intelligent creatures actually had the habit of blood sacrifice.

"Let's keep walking. "Time is running out, and when the time comes, they will be teleported out, so Yan Xu no longer studies these monuments that have disappeared for thousands of years, but turns to Hu Niu and says.

Walking out of the living area of those creatures, Yan Xu and the others didn't go far before they felt the heat and fire from not far away, and when they walked over, those creatures didn't know how deep they had dug up, and they had dug up lava.

To be honest, Yan Xu always felt that this was a bit of a challenge to his common sense, the secret realm was obviously just an existence similar to a fragment of the spirit world, the area was not too large at all, and it should be flat in his imagination, but it could dig out lava, how did this happen?

Shaking his head, Yan Xu didn't plan to delve into this issue, because it was purely uncomfortable for himself.

The lava crack had been carved into a forging place by the underground creatures, and even things like hammer felt could be seen, and they had dug through the dust to find a number of dark gold ingots.

Yan Xu felt that these metal ingots, which were heavier than gold, should be good things, so he took out a jade gourd given to him by his master, which was a storage spirit weapon, which could store a cubic meter of things, but he didn't expect it to be almost stuffed.

Unfortunately, their journey ended here, and when the time came, they appeared in the dean's room in a blink of an eye.