Entering the iron gate, you can see that there is a small house next to the iron gate, which is obviously the resting place of the gatekeeper.

And next to the small house, there is a passage that leads to the underground.

Cheng Ming took Qin Tian and the others and walked towards the passage.

The passage is wide, three meters high and three meters wide, and the whole body is very dry, and the walls and stairs are paved with fine stones.

On the walls of the passage, LED lights are installed, and under the light, it is no different from the daytime.

The three of them walked down the passage, and after about five minutes, some noisy voices came from the front.

After turning a corner, what greeted Qin Tian's sight was an incomparably wide underground block.

It's night outside, but here, it's as bright as day.

The shops are open to welcome customers, there are many goods placed at the door, all kinds of people are constantly shuttling, the shouts of the vendors, the bargaining of customers, it seems that it is no different from the ordinary vegetable market.

However, the people who can enter here are definitely not ordinary people.

At least, they are all practitioners.

Without a little effort, no one to recommend, it's impossible to get here.

Qin Tian looked at the underground market in front of him, and was slightly surprised in his heart.

To be honest, even he has to admit that the scale of this square city is already okay.

Moreover, when he looked at it, he could see a lot of precious medicinal materials that were difficult to buy outside, as well as various bladed weapons, and many raw materials for crafting weapons.

So many rare things are gathered in this underground market.

It is enough to prove the hegemony of Tianshan Gate in the northwest.

Since the things Qin Tian came here to buy were some rare metals, Cheng Ming directly took Qin Tian to the area where the metal was sold.

When he came to a good-scale store, the owner saw Qin Tian and others at the door, and his face was immediately full of smiles.

Immediately, his eyes fell on Cheng Ming's body, and his smile became even brighter.

"It turned out to be Brother Cheng, what a rare customer!" the shopkeeper laughed and greeted Cheng Ming.

"Boss Gu, long time no see!" Cheng Ming also laughed.

Although he is a casual cultivator, he also has a first-class realm of cultivation after tomorrow.

This kind of strength can be regarded as a bit famous in Huaxia.

Moreover, he often travels in the northwest area, and he knows a lot of people, and there are even more people who know him in this underground market.

And everyone who knew him was very polite to him.

A strong person will always be respected by others.

Boss Gu's gaze fell on Qin Tian and Master Chen, and his heart suddenly felt slightly awe-inspiring.

Because, from Master Chen's body, he felt the same strong aura as Cheng Ming.

Moreover, it is stronger than Cheng Ming.

In an instant, he understood that this old man was also a strong man in the first-class realm of the day after tomorrow, and if nothing else, he should still be at the peak of the first-class level of the day after tomorrow!

And the young man, he couldn't see through it.

There was not the slightest fluctuation of true qi on his body, and he looked like an ordinary person.

But.

Can ordinary people get in here?

Even if you are a member of a top wealthy family among ordinary people, it is super difficult to enter here!

Not only that, although he couldn't feel the slightest breath fluctuation on this young man's body, this young man gave him a feeling of extreme fear.

This feeling made goosebumps pop up all over his body.

Bring him this feeling, this young man is definitely not an ordinary person!

Could it be that the innate grandmaster is not successful?

The thought of this possibility filled his heart with horror.

Such a young Innate Grandmaster, wouldn't it?

In a short moment, many thoughts had flashed through Boss Gu's heart.

But there was nothing abnormal on his surface, his eyes turned around on Qin Tian and the others, and then he looked at Cheng Ming, and said with a smile: "Brother Cheng is a rare guest, what, do you want to buy something this time?" This time I have a batch of high-quality goods here, for the sake of you and I have known each other for so many years, I will definitely give you a preferential price!"

"Boss Gu, you misunderstood, it's not me who wants to buy something this time!" Cheng Ming said with a smile.

Immediately, he looked at Qin Tian.

At that moment, Qin Tian looked at Boss Gu and said directly: "I want to buy some metal raw materials, I don't know if you have them here?"

Hear the words.

Boss Gu nodded with a smile and said, "Of course there is, that's what I sell here!"

As he spoke, he invited Qin Tian and the others into the shop, and introduced as he walked: "I have a wide variety of metal raw materials here, and they are of high quality, so they are best used to make some blades......

When Qin Tian and the three of them entered, they saw that there were two shelves in the store, on which were placed many various metal samples for customers to choose from.

Qin Tian glanced away, but he was a little disappointed in his heart.

Because most of the metals placed here are some common metals.

Things like iron, chromium, manganese, and alloy steel.

However, what Boss Gu said just now is not wrong, these metals in his store can indeed be regarded as a lot of varieties, and the quality is the best choice.

But it's a pity that what Qin Tian needs is not these ordinary metals.

What he needed was a special metal like dark iron.

Only that type of metal can he use for cultivation and can meet his requirements.

"Is that all you have here?" Qin Tian asked.

"Aren't all these metals able to meet your needs? There are so many types, there's always a weapon that suits you to build a handy, right?" said Boss Gu incomprehensibly.

Because the average customer comes here to buy things, they are selected on these shelves.

The variety of samples here is enough to make extremely hard weapons.

It seems that this young man is not satisfied?

What did he want? Faintly, Boss Gu had some guesses in his heart, this young man, should he want to buy some special metals?

Really.

The next moment, Qin Tian shook his head, he didn't say anything, but directly took out a small piece of metal from his pocket, handed it over, and said softly: "Do you have this here?"

Boss Gu looked at the small piece of metal in Qin Tian's hand, and his pupils suddenly shrank slightly.

What did he see?

Darksteel?

"Is this Xuantie?" asked Boss Gu in surprise.

"Yes!"

Qin Tian nodded, and said in a deep voice: "Do you have this rare metal here?" I want more than just dark iron, as long as it is the same type of rare metal, I will buy it, as long as you have as much as you have, I will buy as much as I want!"

Hearing this, Boss Gu suddenly gasped!

Buy as much as you want?

The first thought in his heart when he heard this was that he didn't believe it, thinking that Qin Tian was joking.

But immediately thought that Cheng Ming and this old man, the two first-class masters of the day after tomorrow, were so respectful to this young man.

His mind froze again.

This young man is not an ordinary person!