Xu Yichen is unprepared for what he will encounter or discover. In the eyes of demon hunters, this is a risky action.

If in reality, he would never enter an underground space which is obviously dug by hand without knowing the following situation and not fully prepared.

But here, Xu Yichen is a demon hunter, and no one else can take his place.

The most important thing is that he is in a hurry.

Walking along the narrow underground tunnel, Xu Yichen was far beyond the ordinary people's perception. He vaguely felt that the tunnel led the two intruders to deeper underground places with a negligible angle.

What on earth did you dig this tunnel? After walking more than 300 meters below, Xu Yichen is sure that with the strength of ordinary people, they can not spend manpower to build such a useless passage for ordinary people.

As the tunnel went down, the height of the tunnel gradually increased, and the demon hunter was able to walk with his chest up, which made him feel relieved.

Before this, Xu Yichen had been thinking about how much combat effectiveness he could play if he met the enemy in the narrow space before.

Demon hunters speculate that this might be a place where a team of professionals, or organizations, once lurked in the town to hide something.

Because there are no traps in the whole tunnel, the holes in the wall occasionally appear, which are used to keep the air flowing in the tunnel.

With saliva stained fingers, you can feel the flow of air. Xu estimated that he was about 15 meters underground at this time.

There is no turning in the straight tunnel, and the top should be at the edge of the camp.

A rotten wooden door appeared in front of the two men.

What's in there waiting for you?

Did it cause the disappearance of the people who lived here before?

What happened to the first people who dug the tunnel?

At this time, on the ground, the young people standing on guard on the simple city wall issued a warning. They lit the brazier nearby, and at the same time, they called out loudly: "something is near the city!"

Ted glanced at the unarmed warrior at the entrance of the tunnel and said to the one armed man, "you stay here. I'll see what's going on."

With a wink at kasha, the only two professionals left in the camp rushed to the direction of the fence.

In that direction, the strange hissing and roaring made the one armed man feel a little bad, but he relaxed a little when he saw the tall figure of Nangong Yujun.

"If we have a problem that can't be solved, will you The one armed man asked tentatively that he was not sure what kind of person he was.

In the days when he took up the task all over the world, he met many professionals, some of whom were chivalrous and courageous, and others were unable to save themselves at the sight of death. The coldness of ordinary people, the higher the professional, the more serious.

However, the players in the loess area have already taken over the burden of fighting against chaos or other evils in the hands of the indigenous people, and the fighting players have formed the habit of protecting mortals.

"No tragedy will happen here until I fall." The voice of the samurai in the helmet seems dull, but his words let the one armed man put his heart down: "the situation outside is not as bad as you think, if there is a problem, I will support in time."

As a player with a career level of 8 and a master of extraordinary power, Nangong Yujun is confident to reach any corner in five seconds, which is not a big town.

It may cause a lot of damage to public facilities, but the samurai don't care about the details.

Send the situation outside to the underground demon hunter, and Nangong Yujun will focus on the surrounding environment. In the dark, you never know whether the exposed enemy is bait or not.

Where there is no sound, it may be more dangerous.

After receiving the news, the demon hunter was slowly pushing open the wooden door. Behind the door, a relatively spacious small room with about 20 square meters appeared in front of two people.

"I don't feel the influence of the void at all." "Unlike drinking your blood, it seems to be unusually clean here," ephrair told the hunter

"Clean?" The demon hunter looked around -

a small round table with several books that could not be seen, a small oil lamp covered with dust, and an equally dirty chair.

On the wall, a bookshelf was randomly built with wooden boards. Now it has been broken, and the books on the ground have been dilapidated.

The most attractive thing is a few boxes stacked in the corner, one of which is open and filled with bars of metal.

Xu Yichen picked up one of the metals, which was much lighter than he had imagined. Under the dust, it was similar to the color of silver metal, but it was far more glossy than silver.This is absolutely not silver. After being exposed to the air for such a long time, silver will lose its luster and easily react with some components in the air.

But the metal in the hand of the demon hunter, after blowing away the dust, is like a sword sealed with dust for many years and emits silver light.

Secret silver!

This is the first word that appears in Xu Yichen's mind. Although he has never seen the metal, after hearing that the pirate king Ma Ma Ma may have mastered a secret silver vein, he discussed the nature of this metal with the dwarfs, GE Luoyin and carpenter.

For example, good conductivity to magic, low density, high intensity, etc.

Of course, at the dwarf level, the metal Mithril has only seen it from afar, and has never played with it in person. It is basically hearsay.

But with these descriptions alone, Angus carpenter's eyes are already shining.

"It may be a metal that can't exist in reality and has the advantages of countless materials. I can't imagine what this kind of metal would be like." "If I can study this metal, maybe I can try to make it in reality!" he said

Of course, if Nangong Yujun heard this, he would say: "you are late, man, we have finished this work."

Nangong Yujun used this kind of metal as conductive material in his experimental armor.

It is said that in reality, there are already laboratories in the experimental synthesis of this metal.

The new Chinese scientists studied the arrangement of the metals from the atomic level and made a one-to-one reproduction in reality.

This is due to the first batch of science officers who entered the game. Many of them have become high-level casters. As pure researchers, these people are quite obsessed with magic research.

They optimized the existing magic models and created a kind of magic that can be used to observe micro matter in the Aboriginal way, which allows scientific officers to observe matter more directly.

After two months of discussion, the anti intelligence committee finally concluded that this kind of research and development work would not have a positive impact on the existence of the void. At the same time, there was no corresponding change in the green skin in the north.

Finally, the spell was popularized.

Now, in front of the demon hunters, there is a whole box of metal suspected of secret silver.

Who was the owner here? Xu Yichen's doubts are even greater.

In front of the demon hunter, in addition to this box full of mysterious metal, there are three unopened boxes.

Two of the boxes had no extra protective measures and were locked with a simple lock. Obviously, the former owner was very confident in his secret cabin and was sure that no one would find it.

So he didn't do any extra security.

The demon hunter snapped off one of the locks and opened the second box.

The box is full of parchment, full of complicated formulas and patterns. The notes look a little scrawl, but the handwriting is the same person's.

Xu Yichen picked up a few of them. The parchment was thicker than he thought, not only very soft, but also exceptionally resilient.

Even if it was thrown into this unknown underground space, I still kept the above handwriting clear after I did not know how many years.

"This is paper made from the skin of a flying dragon." Ephrail picked up one of them, and his voice was a little husky: "high level casters sometimes use this material as a magic scroll material."

"These are not magic scrolls." Although the demon hunter had never used the magic scroll, he had seen it in his teacher's room. It was a kind of thing that he had used before.

Now in his hands, these are just some notes, without a trace of magic power.

The value of the magic scroll, according to the magic level recorded above, may vary from 100 gold coins to 5000 gold coins in the market.

Higher level magic, ordinary scrolls can't bear the power, and are usually stored in more precious things, such as scrolls made of dragon skin, or gemstones with perfect structure.

The paper made of the skin of this valuable flying dragon is obviously regarded as ordinary paper to record essays.

"I think these things once belonged to a powerful caster." The silver haired witch roughly rummaged through the dragon paper in the box and said to the demon hunter, "only they have stored so much precious metal."

"It's not like a caster's territory here." Xu Yichen casually opened the third box: "I thought they all lived in the tower."

In the third, there are sealed glass containers in which unknown biological tissues are immersed.

In one of the jars, there was an eye the size of a fist, with a part of the eye handle behind it.After being exposed to the light, it shakes like a living creature for several times. The whole eye is like a goldfish. It changes direction in the container to avoid the light directly shining on the pupil.

"It's more like someone sneaked into the wizard's lab and stole all these things." The demon hunter gave a more reasonable explanation.

He remembers carpenter saying that there was a black wizard tower nearby. Maybe someone had been thinking about the fortune of the caster decades ago?

Then, in a small village nearby, we dug a very secret treasure house without showing the mountains and dew.

Then, when he got a proper opportunity, he sneaked into the mage tower and stole enough wealth, such as these things in front of him.

Xu Yichen knew that Yang Yuefan had done such a thing, but he believed that it was because the mage tower did not have too many warning measures at all, and it was totally to deal with the war.

This also explains why the people of this small village disappeared later.

From the fact that these "stolen goods" have been forgotten here, it can be estimated that 80% of the original thieves have been found. Maybe the villagers here have become burial objects in the anger of the mage.

However, there are too many doubts about this kind of inference. The truth has been covered up for a long time. Xu Yichen plans to let him study these documents after the caster is available in the battle group in the future.

In front of him, there was the last box, the smallest.

But this box is made of metal, full of meaningless patterns, and there is no chain head.

Fortunately, the former owner seemed to want to open the box, which saved Xu Yichen a lot of things.

A pried edge is in the corner of the box. Judging from the surrounding traces, the previous owner used many means to open the box, but at the moment before success, he gave up.

Maybe it's the owner who just came to the door?

Xu Yichen thought so, with his long sword into the gap, and then forced to pry the box open.

Hundreds of kilometers away from the village, a huge tower on the edge of a cliff, suddenly there was a noise.

A complex machine the size of a truck, originally in a silent state, as if suddenly activated by something, countless gear levers began to move inside.

With the neat spray, the machine roared. A tall figure in black robe, obsidian mask and staff suddenly appeared in the room.

The black robed mage's face hidden under the mask could not see his expression, but from the frequency of his steps back and forth, he seemed very anxious.

As the mechanical activities become faster and faster, a carved picture gradually appears in front of the mage.

Similar to the three-dimensional photos, first carved trees, then the swamp, and above the ugly ghost.

Then there was the simple city wall and the nervous young militia on it. Then the tall figure of Nangong Yujun also appeared in the sculpture, but it was only half time to carve. The machine suddenly lost its power and stopped.

Meanwhile, in the basement, the demon hunter slammed the box.

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