I am inventing at the highest level in the world

Chapter 67: First Arrival at the Caverns [Seeking Follow-up Reading]

On the night of their breakthrough to the third level, Gu Nan and Wang Jinyang called home. They talked to their parents for a long, long time...

Wang Yang and Liu Jingjing also told Gu Nan and Wang Jinyang that they were all suddenly promoted, which was also quite strange.

In response, Gu Nan and Wang Jinyang congratulated him with a helpless smile.

Lao Wang has become the vice president of the Martial Arts Club of Nanjiang Wuda University, and it is normal for his parents to be promoted to a small position in the Yangcheng Education Bureau.

……

On the third day, Gu Nan and Wang Jinyang's blood, energy and mental strength were fully restored.

Gu Nan and Wang Jinyang's blood and energy both reached 1008 calories, and Lao Wang's mental power also reached more than 510 hertz.

"1000 calories?" Gu Nan thought to himself. This seemed to have exceeded the limit of an ordinary third-grade warrior.

He has more than 1000 calories of Qi and Health before he reaches the peak of the third level. If this gets out, others will be shocked.

Gu Nan was just thinking when suddenly a ding-dong ding-dong ding-dong sound came from his mind!
The furnace in my mind suddenly flashed!
[Furnace Tips, you have a "new" blueprint, please check it out]

[The Crucible: Internal Training Method (Ultimate)]

【Function: Improve/restore mental strength, nourish qi and blood, suitable for any state.

Every time someone learns the inner training method, they will feed back to the furnace host to increase their mental strength/blood by 10% (the same person can feed back multiple times, and feed back once every time they break through a barrier)]

[Mantra: The Jade Palace in my heart, the Jade Capital in my eyes. "The paths are full of obstacles, so the journey is blocked. I am bored and drive a car, but I have no rules to cross the pass. I am walking around, and I am also walking...]

【Note: It has been upgraded, are you happy? 】

"I'm so happy!"

Gu Nan was really happy about the upgrade of his internal training method.

After the upgrade, [Internal Training Method] was originally only for the third level and below, but now it can be used in any realm.

And its original function was to slowly improve and restore Qi and blood, but now there is no "slowly" anymore.

After reaching the high level of the third grade, Gu Nan clearly felt that the internal training method was recovering his mental strength and blood slower than before.

Now that it has been upgraded, I don’t know how effective the recovery will be after the upgrade.

Gu Nan's qi and blood immediately burst out, and then he started to practice the upgraded internal training method.

The recovery effect is amazing!

It can restore 5 calories of qi and blood in 10 minutes, it’s so powerful!
Gu Nan immediately passed the new formula to Wang Jinyang.

"Lao Wang, I made some improvements and the results are amazing~" Gu Nan squeaked.

"I was wondering why you hadn't invented anything else in such a long time. Turns out you improved your technique."

Wang Jinyang gave Gu Nan a thumbs up. He praised Gu Nan and voted for him for a monthly ticket.

“…Hehe…” Gu Nan’s mouth twitched.

He didn't invent anything new because he was only focused on leveling up...

After all, going down to the underground cave is very important to Gu Nan’s plan.

The time comes on June 3th.

Gu Nan and Wang Jinyang are planning to go to the Tiannan Cave today.

And Zhang Qingnan would naturally accompany them to the Tiannan Grottoes.

"This is another death crisis. Try your best to stay alive." Zhang Qingnan did not say anything to encourage them. They are warriors, and warriors should face the enemy calmly and should not be cowardly, even when facing the unknown.

"Definitely." Gu Nan and Wang Jinyang responded solemnly.

At this moment, the three of them have already boarded the plane to Tiannan.

Tiannan Grottoes are located in the Qingmang Mountain area, and Tiannan Wuhan University is also near Qingmang Mountain.

That afternoon, Gu Nan and the other two arrived near Qingmang Mountain.

Zhang Qingnan took Gu Nan and Wang Jinyang and walked towards a valley in Qingmang Mountain.

Soon, what came into their sight was a military base built of barbed wire and concrete walls, with some buildings similar to artillery batteries next to it.

There is a guard post every three steps and a sentry every five steps. There are soldiers on guard with guns everywhere, and there are tanks, artillery and other military weapons around.

There is an alloy house in the middle of the valley. The defenses around the house are extremely strict. Gu Nan and Wang Jinyang felt a great sense of oppression before they even reached the door.

Moreover, at the door, there stood several warriors above the third rank, with vigorous blood, alert eyes, and fierce aura.

"Documents, entry permit!"

Zhang Qingnan took out his ID, the school's application documents, and the admission documents approved by the military one by one.

After the inspection, the other party carefully checked Gu Nan and Wang Jinyang's documents and backpacks, and detained some electronic equipment and scientific and technological achievements before letting the three in.

"It's so strict." Gu Nan sighed softly, and Wang Jinyang also felt it was strict.

If they had any problems, they would probably be caught on the spot.

Zhang Qingnan chuckled and began to explain to the two of them.

"This is also to prevent evil cults from sneaking in. However, after you check it once, it will be much easier to go down to the cave in the future."

To go down into the cave, martial artists from the martial arts university need to travel with at least two people, while martial artists from the society need to travel with at least ten people.

Cell phones and other items are not allowed into the cave.

"Newcomers, I hope you come back alive." The soldiers on guard said to Gu Nan and Wang Jinyang in unison: "Return in triumph!"

The guarding soldiers also knew the identities of Gu Nan and Wang Jinyang.

A genius from Wuhan University, a third-grade freshman!

Such people are willing to go down to the catacombs and deserve their respect.

Every warrior who enters the cave is a hero!
"It feels so heavy." Wang Jinyang frowned.

Even before entering the cave, Gu Nan and Wang Jinyang felt a sense of pressure and murderous aura.

The two continued to follow Zhang Qingnan forward.

Soon, the three of them stopped.

After Zhang Qingnan negotiated with the other party for a while, a tightly fitted alloy door inside the metal hall was slowly opened.

"This is the gate leading to the underground, let's go in."

After saying that, Zhang Qingnan, Gu Nan and Wang Jinyang walked into the gate. There was more than one passage leading into the gate.

After coming out of the passage, everyone entered a huge and spacious hall.

There is a huge display screen in the center of the hall, which displays a number of tasks.

Gu Nan and Wang Jinyang took a look and realized that this was the task system in the cave.

However, they were unable to accept the mission the first time they entered, nor did they have the ability to accept it.

A minute later, the three reached the end.

A huge alloy door stood in front of the three people, with a small door on it that was more than one person tall.

"I've said everything that needs to be said before. Let's go in." Zhang Qingnan introduced the alloy door to Gu Nan and the other person, then grabbed them and led them into the vortex passage.

After entering the passage, Gu Nan and Wang Jinyang did not see the underground world or soil, but dense energy particles.

"Such dense energy particles." Gu Nan murmured softly. Although he had read the original novel, this was the first time he experienced this magical thing personally.

Wang Jinyang’s mental strength was also strong, and he could also feel the energy particles in the channel.

But the two did not dare to move.

After more than ten minutes, Zhang Qingnan and the other two finally reached the end, where there were people waiting.

Without much greeting, the three of them quickly walked out of the passage and arrived at the cave world.

As soon as they came out of the passage, Gu Nan and Wang Jinyang began to look around.

There are some buildings all around, and a tall city wall in the distance, and a very ugly big sun hanging in the sky!

"Gu Nan, this sun was not designed by you, was it?" Wang Jinyang said with a smile. The style of this sun is really similar to Gu Nan's.

Gu Nan rolled his eyes at Lao Wang. He did remember that the sun seemed to be a huge energy stone, but he had forgotten what it was exactly.

The human settlement in Tiannan Caverns is not as big as the Demon City Caverns, but it is not small either. It is more than 2000 meters long, more than 2000 meters wide, and covers more than 400 million square meters. It has a permanent force of more than 5 people, and there will be more in wartime.

There are a total of 11 cities in the Tiannan Caves. The south is the edge of the forbidden sea, the north is the cave city, there are individual cities on the east and west sides, and the others are forbidden areas for monsters and plants.

Tiannan City faces Rose City in the northwest, which is 170 miles apart, and the areas in between are all friction or war zones.

Currently, Tiannan City is at a disadvantage in all battles, big and small.

Tiannan City is simply laid out, with mostly bungalow buildings. The military headquarters are on all four sides of the city, with the heaviest forces facing Rose City, and there are troops stationed in other directions as well.

As for non-military warriors, after entering the cave, they were all arranged to the central location of Tiannan City.

Zhang Qingnan took Gu Nan and Wang Jinyang to visit Tiannan City.

Hotels, hair salons and so on, it can be said that there is everything you need.

After the tour, Zhang Qingnan brought Gu Nan and the other person to the dormitory with large bunk beds, but there were only three of them in the entire dormitory.

The dormitories are also very simple, but they are definitely habitable.

"Remember, there is only one purpose for coming to the cave, and that is to kill the enemy!"

Zhang Qingnan said this very seriously. He had to explain this matter to Gu Nan and Wang Jinyang.

Every time Tiannan and Diku fight, there is only bloody battles and death, no surrender!

The people in the underground cave would also attack Tiannan City and kill countless people, but it was difficult for human warriors to enter the underground cave city and they could only fight in small-scale field battles.

Finally, Zhang Qingnan said: "This time, your first task in entering the cave is to familiarize yourself with the terrain and the environment, and the rest can be discussed later.

I will take you on a ten-day tour, conducting short-distance explorations. After ten days, if we are all alive, you can move freely depending on the situation.

In the cave, except for some military battles, in other situations, the spoils you capture belong to you. "

Gu Nan and Wang Jinyang understood, and they took a detailed look at the topographic map of the Tiannan Grottoes.

Zhang Qingnan also left immediately, probably to make preparations.

"Old Wang, remember the map well, so we don't get lost and end up at the other party's house when we go out."

Gu Nan's eyes hurt when he looked at the map because he has never been good at geography since he was a child.

Answering questions is all about skills.

"I'm going to invent a cave locator someday."

Gu Nan secretly came up with the idea of ​​inventing an intelligent map of the cave.

Although he had this in mind, he and Lao Wang still looked at the map very seriously.

After looking at the map for a while, Zhang Qingnan also came back.

During the meal, Gu Nan and the other two ate some compressed biscuits they brought with them and did not go to the cafeteria.

Cooking in the cave is very difficult and most of the food is half-cooked.

Lighters couldn't be used in the cave, which made Gu Nan very confused.

"Is there no liquefied gas in the cave?" Gu Nan asked a soul-searching question.

Zhang Qingnan chuckled: "Really not, there is liquefied energy."

Gu Nan was speechless. He could only say that the transformation of the cave was too thorough.

After they finished their meal, everyone outside returned to the dormitory.

Soon night fell in the cave.

The night in the cave was really pitch black, and you couldn't see your hand in front of you. Only at the four gates of Tiannan City could you see faint lights.

The military uses energy stones, combined with mirrors, to maintain brightness with less consumption. Some stores in the city also use this solution.

After all, it is a human stronghold. It cannot be completely dark without any light, otherwise it will make people feel scared psychologically.

Night fell in the cave and the room was pitch black. Fortunately, Gu Nan and the other two could see some things.

Zhang Qingnan is at the fifth level, his internal organs have been tempered, so naturally he can see at night.

Gu Nan and Wang Jinyang have high mental powers and can see clearly things within a dozen meters.

Suddenly, there was a noise from the north!
"You guys stay here." Zhang Qingnan said, and quickly rushed to the north.

"All middle-rank warriors, gather at the north gate. Warriors below the fourth rank, stay quiet and do not go out without permission!"

A loud shout quickly spread throughout Tiannan City.

Gu Nan and Wang Jinyang frowned. It was just getting dark and the enemy attacked. The situation in Tiannan City was not optimistic.

There was constant sound of fighting in the north, especially in the northwest, which only died down after three full hours.

"Remove alert, the enemy has retreated!"

The sound of fighting finally ended in the fourth hour.

Gu Nan was in a heavy mood. The situation in the Tiannan Cave was too bad. He was now a little afraid to go out and move freely.

If you encounter a large group of people in the cave, you won’t even know how you died.

After a while, Zhang Qingnan also came back.
"Teacher, you are injured!" Gu Nan and Wang Jinyang exclaimed.

One of Zhang Qingnan's arms was covered in blood.

"I'm fine. The situation in Tiannan Grotto is getting a little tense."

After Zhang Qingnan simply treated his arm, he told Gu Nan and Wang Jinyang what had just happened.

There are more and more raids on Tiannan City from these Heaven and Earth Caves. In the past, they were all idle warriors, not the army warriors of the Underground Cave City. But now the army warriors of the Underground Cave have gradually begun to raid Tiannan City.

"I don't know if it's a wrong choice to bring you to Tiannan City now." Zhang Qingnan sighed slightly.

The current situation in Tiannan City is actually no longer suitable for the trials of newcomers like Gu Nan and Wang Jinyang.

"Teacher...there are no trials in the cave, and we are not here for the trials." Gu Nan and Wang Jinyang said. Although they felt a little heavy at the moment, it did not mean that they were afraid and wanted to leave.

"I will take you out of the city tomorrow morning."

Zhang Qingnan nodded. There were no trials in the cave. Every trial was a matter of life and death.

The night passed quickly, and Gu Nan and Wang Jinyang were both in a half-asleep and half-awake state.

When the two woke up the next day, the sky suddenly became bright without any gradual change.

After eating the compressed biscuits, Gu Nan and Wang Jinyang followed Zhang Qingnan out of the dormitory.

When passing by the north gate of Tiannan City, there were blood stains on the ground near the north gate, and there were some damaged areas on the city wall.

"The situation is not good." Gu Nan was slightly depressed.

A surprise attack was already difficult enough, and when the war began, it was no wonder that the Tiannan Caves were eventually abandoned.

Soon, Zhang Qingnan took Gu Nan, Wang Jinyang and some teams from Tiannan Wuda out of the city.

The first time they went out of the city, Gu Nan and Wang Jinyang were extremely alert. Although they were curious about the plants and animals around them, they did not let their guard down.

Although we are still very close to Tiannan City, we might be attacked unexpectedly.

The plants in the cave still have some similarities with those on Earth, and the animals are also similar to those on Earth, but they are larger in size.

At seven kilometers, everyone stopped, and Zhang Qingnan began to instruct Gu Nan and Wang Jinyang on how to find water sources, observe ambush points, set traps, and track footprints...

There is a small pond nearby, and during free time, Gu Nan caught a few geese.

Animals like the cave goose have thin skin and little meat, and their entire bodies are made of hair and bones. No warrior would hunt them.

But Gu Nan just needed feathers.

Once he got down to the cave, he realized that his down jacket had lost its effect.

Gunpowder was useless in the cave and couldn't even explode.

Gu Nan had no choice but to start preparing to use the things in the cave to improve his down jacket.

In the next two days, Gu Nan and Wang Jinyang were familiar with the environment around Tiannan City. They did encounter some enemies, but they were all idle warriors of the first or second rank, and their gains were minimal.

ps: Please read on, everything for me!
6000 words today.

(End of this chapter)