Nie Xiao roughly estimated the time when he came to the underground, and now it is about twelve hours, that is, he still has at least ten days to stay in the underground layer, and the time can be said to be quite sufficient.

Keep probing forward, in fact, the underground layer is not an underground world from top to bottom, but a flat land, the reason why Nie Xiao wants to go forward is only because there are many entrances to the underground layer, so the place where those other entrances enter is an unknown area for him, and the cultivation of most of the Earth Demon Clan creatures is about the same, and he is not worried about encountering any particularly powerful Earth Demon Clan.

The flying Shura he killed can be regarded as the top monster in the underground layer, if there are other underground demon clan little lords, even if Nie Xiao really can't beat the other party, he can escape, the underground and the bottom of the sea are still different, at least there will be no restrictions on the operation of vitality here.

Nie Xia kept walking forward, and when he came to a place where there were more Earth Demon Clans, he released the treasures on his body, and then attracted those Earth Demon Clans who had no spiritual intelligence, so that a small energy ball could blow up hundreds of such Earth Demon Clans.

Ordinary earth demon clans can be seen everywhere underground, and they reproduce quite quickly, so even if Nie Xiao turns over the entire underground layer and blew it up, it will not affect their growth and development, because there are too many treasures and cultivation resources hidden underground.

According to the legend, if you can find a Dao Spirit Stone Origin Stone Mining Area underground, it is equivalent to obtaining the wealth of a dynasty in the world, basically after digging up these Source Stones, back to the land, you can at least exchange for billions of Dao Spirit Stones, and maybe even tens of billions.

Because the role of this origin stone is quite wide, it is not only used in the construction of some siege and defensive weapons in the world, but even in many cultivation sects, it is impossible to ask for it, because as long as there are enough origin stones, it can be used for various purposes through some formations.

For example, generally speaking, five origin stones are required to build a teleportation array, and after the construction is completed, as long as there is a teleportation array that can be docked, all cultivators can teleport to any area of the Star Great World through this teleportation array. The teleportation array can be said to be one of the most precious things in the world of the stars.

Because no matter what level of cultivation the character has reached, it takes a certain amount of time to travel between continents, and it is rumored that the fastest flying magic weapon in the entire world is called the Flying Treasure Ship, and this treasure can only ensure the speed of thousands of miles a day when the energy is sufficient, and this is already the limit of speed.

If a teleportation array is established, only a small number of Dao Spirit Stones are needed to activate the teleportation array to teleport to the side of the teleportation array that is connected to it.

At present, there are many large and small teleportation arrays in the entire Star World, but for this very useful thing, no amount is too much, so the Origin Stone is very popular.

And that's just one of its roles.

So now Nie Xiao is still looking for this kind of mining area with a glimmer of hope, although the probability is almost close to zero, but he still has such thoughts in his heart.

The deeper you go into the underground, the more likely it will be that such a mining area will appear, but there are basically some relatively powerful underground demons guarding the second layer of the underground, which is not something that ordinary cultivators can go to, judging from Nie Xiao's current means, it is only possible to be able to fight against the earth demons in the second layer of the underground and be able to do it with ease, at least to reach the cultivation of more than forty-five qi.

And if you encounter some more powerful demon kings and the like, you must instantly use some talismans containing the laws of space to escape, otherwise you may be killed on the spot in one move.

Moreover, the underground demon clans that started from the second layer of the underground all possessed a certain amount of spiritual intelligence, and there would be many cultivators who would go down to cultivate, but it was not surprising that there were also many disciples of the Great Gate Sect who died in them.

Humans want to grow themselves by hunting the Earth Demons, and of course the Earth Demons will slaughter humans, so it seems that humans are actually the invaders of the Earth Demon Clan's territory.

However, according to the powerful development of the Earth Demon Clan, if there is no race to restrict it, there may be a huge crisis in the future, so many current cultivation sects encourage disciples to go underground and kill the Earth Demon Clan, which is also a means to prevent trouble before it happens.

Of course, the foundation of the Earth Demon Race is still in the sixth layer underground, and now there should be many high-level cultivators who have also attracted some attention to this sixth layer, and this race must be suppressed, otherwise when they rise, it is very likely that the end of the human race will come.

However, Nie Xiao is a little strange, according to the description in the book, the demon emperors in this underground should have cultivated to a very terrifying level, and the cultivation time is much longer than that of many races on the ground, if it is really powerful, then it should have come to the ground to slaughter a long time ago, why haven't I heard of any more powerful earth demon clan threatening other races so far.

On the contrary, many races come underground to kill the earth demons, and then take their body parts, or Neidan and go back to refine some weapons or magic weapons and the like.

However, these questions can only be questions, and now Nie Xiao can't explore this answer, so let's complete his goal first.

I don't know how many miles I walked forward, Nie Xiao faintly heard the sound of someone talking, yes, it was not the cry of the Earth Demon Clan, but the voice of a person.

"Senior Brother Shi, this time we got the underground treasure map of Senior Brother Yu, Senior Brother of the True Inheritance, and specially came to this underground to hunt for treasures. A disciple wearing a Wenxin Yuan robe said to a tall man.

"Shi Wenming?" Nie Xiao's eyelids jumped, it was really a narrow road, he could meet him here, when he first saw him, he snatched all the elixir of the other party in public, causing the other party to be furious, and swore to kill himself to vent his hatred.

At that time, his cultivation was only about ten qi, which was completely incomparable to his current self, and he had also cultivated so many exercises, and he had also received the initiation of the Heavenly Punishment Elder and learned the Sacred Heart Sutra.

Nie Xiao simulated his breath into the breath of the nearby Earth Demon Clan, quietly observing the movements of this Shi Wenming.

"That's right, this time I will definitely be able to find the treasure, and when the time comes, I will shine in the competition of the Five Mansions and Six Academies in three years!" Shi Wenming said.