Cultivation Starts From Planting Sweet Potatoes

Although the battle at the mine entrance was brief, it also alerted other Blackwater troops stationed here.

There are ten people stationed here, two are dead and eight are left.

The remaining eight people quickly gathered together and rushed towards the entrance of the mine.

"The people coming are Jindan strongman, Sick Cat, Dadun, and Erdan. The three of you come with me to the entrance of the cave to stop them.

The remaining four people brought rocket launchers and spread out around the mine to ambush. "

Zhu Zheng was very tall, so he picked out three of the seven people behind him to go with him to stop the enemy.

With their foundation building skills, it is almost a fatal task to stop the powerful Jin Dan.

The three people behind him did not hesitate. They separated one of the two rocket launchers they carried, walked out of the team, and followed Zhu Zheng.

As respected black water soldiers, the education they received since childhood has made them fearless and move forward in the face of death.

It is an honor for a soldier to die in battle, and it is a matter of honor.

Using foundation building to fight against the golden elixir, they only have one chance at most. If the attack fails, the four of them will die at the hands of the golden elixir monks.

But before they die, the four of them will try their best to gain more opportunities for the four comrades hiding in the rear.

The entire group of people stationed at the obsidian mine are all veterans who have experienced battles for a long time. In the face of life and death, everyone has a tacit understanding, even indifference.

There is no such sensational plot as "let me go" or "don't go" between each other.

The remaining four people took over the rocket launcher and immediately rushed towards the surrounding highlands to occupy a favorable position in advance.

The rocket launchers equipped by these soldiers are filled with mutant thunder spirit grass seeds, which are powerful enough to kill Jindan.

It's just that although the power of the weapon is great, it depends on the person who uses it. In the hands of the foundation-building monks, it is greatly reduced, mainly because it may not be able to fight.

When Zhu Zheng led the three people towards the entrance of the mine, he already had the rocket launcher in his hand, ready to fire at any time.

When they were still more than a hundred feet away from the entrance of the mine, they saw a tall and thin monk walking out of the mine. The burnt robes could not conceal the temperament of a powerful Jindan monk.

Zhu Zheng immediately stopped, pointed the rocket launcher at the Jindan monk in front, and pressed the switch with his thumb.

"Whoosh! Whoosh! Whoosh!"

The four rocket launchers flew out at the same time in perfect coordination, attacking the tall and thin monk from different directions and angles.

The tall and thin monk had already discovered Zhu Zheng and the four others. Facing the four incoming rocket launchers, he also felt a huge crisis.

Immediately, the fiery red flying sword was slashed out, and a rocket launcher was split in half while it was still halfway.

The rocket launcher is just a magic weapon. Its material and hardness are much worse than the magic weapon flying sword. Naturally, it cannot block the magic weapon's blow.

After the flying sword split one rocket launcher, it continued to split the next rocket launcher without stopping.

But this time the flying sword had just approached, and the rocket launcher had already exploded in the air. The remaining two rocket launchers accelerated and flew towards the tall and thin man.

Unfortunately, just as the rocket launcher approached, the tall and thin man turned into a ray of light and flew away, successfully dodging the remaining two rocket launchers.

While the tall and thin man successfully dodged the rocket launcher, his fiery red flying sword made a small circle and slashed at the four Zhu Zhengs below.

Zhu Zheng offered up a top-quality magic weapon shield, which was like paper in front of the magic weapon. It was pierced by the flying sword and penetrated the chests of four people at the same time.

Just as the tall and thin monk was killing the four Zhu Zhengs, four more rocket launchers flew closer in the sky, and eight more light spots rose in the distance.

Twelve rocket launchers in front and behind flew towards him from four directions and from 12 different angles.

This time, 12 rocket launchers blocked all his escape routes. Although his flying sword could split one or two rocket launchers, he could no longer cut his way out.

"Boom boom boom..."

Amidst a series of bangs, the tall and thin man was swallowed up by a large cloud of smoke from the explosion, and no other movement was seen for a long time.

When the smoke dissipated, only some body parts remained.

………………

It was already half a day after the news of the mine reached Zhang He.

Six of the ten foundation-building monks stationed at the obsidian mine were killed in the battle, and the remaining four successfully killed an invading golden elixir monk using rocket launchers.

After Zhang He learned the news, he immediately heavily rewarded the ten people stationed in the mine, especially the six who died in the battle. The rewards were even heavier, including honors and material rewards, which were received by their families and relatives.

He had paid enough attention to this mine before, but he almost let a Jindan-level spy escape.

In the past two years, the golden elixir monks under his command have become more comfortable. He learned his lesson and immediately sent a golden elixir monk to lead two ten-man black water troops to guard the obsidian mines.

This is just a superficial defense, the number cannot be too large, otherwise there will be no more than three hundred taels of silver here.

He handed over the real defense focus to the Shadow Pavilion, and asked the Shadow Pavilion to place a large number of hidden sentries outside the obsidian mines, and no suspicious persons could be allowed to leave the mines.

In addition, he also asked Zhang Yuan to set up a magic circle within the obsidian vein area, which mainly served as an isolation talisman and an early warning.

As for the Jindan monk who was killed this time, Zhang He guessed that he was probably from the Fan clan of Wu Kingdom.

Of course, it is also possible from other forces.

He once traded 500 kilograms of purple-red obsidian ore with the Fan family. For this kind of rare spiritual mineral, this is already a large sum of money. It is not impossible to attract the attention of other forces and investigate him.

The purple-red obsidian here is located deep underground, and it is difficult to mine. At least it requires a golden elixir monk to mine part of it, but relative to its value, it is worth it.

If this matter is exposed, it will be difficult for him to hold on to this territory with his current strength.

Improving your strength is a slow process that accumulates over time and cannot be rushed.

He himself has just been promoted to the middle stage of Jindan. It is impossible to be promoted to the late stage of Jindan in a short time.

The clone's strength has improved very quickly, but after all, the training time is too short. If the clone can grow to the level of the red-haired young man last time, it should be able to compete with the Nascent Soul monk.

According to what the Undead Demon King said, he could achieve it by swallowing that ball of essence and blood, but he didn't dare to do it yet.

Now, the only ones who can quickly improve their strength are his group of subordinates.

Even if his personal strength increases a lot, the effect will be very limited.

But the total number of monks under him is thousands. Each of them only needs to be promoted a little, and together they are much stronger than him.

Since others were coveting his purple fire obsidian, he might as well use it himself and turn it into his own strength.

Thinking of this, he took out dozens of purple-red obsidian stones from the space, packed them in several jade boxes, and left the city lord's mansion.

Next door to the City Lord's Mansion is the research institute building. Huya and his researchers stay here every day to study various techniques in the world of immortality.

When Zhang He walked into a hall of the institute, Huya and a group of people were pointing around a big iron lump. They didn't even notice Zhang He approaching.

Zhang He was not in a hurry to disturb everyone's interest and stood aside quietly listening to the discussion.

After listening for a while, he already understood that what everyone was discussing was the large transport vehicle that Zhang He had given them to make.

The bulky iron lump in front of them was the first prototype they designed. The technology was not yet mature, and it broke just after it was started.

"I think the refining material is too poor and cannot withstand the infusion of spiritual energy. The material should be replaced."

"The cost of changing materials is too high. I think the formation should be changed to adapt to the materials."

"I think there should be a problem with the design idea."

"I think……"

Zhang He now has some understanding of this big iron problem.

Everyone's design idea is to refine a large-scale transportation vehicle that can fly off the ground.

But if you want to carry supplies and fly, you must have a lot of spiritual energy to support it. In this way, the entire transportation vehicle will be covered with densely packed improved spirit gathering arrays.

It's just that the refining material is steel, which cannot withstand too much spiritual energy impact and is easily broken and damaged.

At this time, Zhang He couldn't help but said: "We can make it look like a car and then walk on the ground. In this way, the spiritual energy consumed will be greatly reduced. Only a small amount of spiritual energy is needed to drive the vehicle forward."

Because flying is a high-energy-consuming form of movement, in addition to moving forward, you also have to continuously fight against the gravity of the ground.

If you switch to running on the ground, you only need a forward pulling force, which can save a lot of energy.

"It turns out that the young master has arrived!"

"Greetings, sir!"

Several weapon refiners saluted Zhang He at the same time.

"No need to be polite, let's continue."

Zhang He waved his hand. These weapon refiners were relatively simple. After hearing this, they immediately continued the previous discussion and directly refuted Zhang He's theory.

"Although vehicles traveling on the ground can save a lot of spiritual energy, they must have roads to travel. If a large amount of materials are transported, the existing roads cannot bear it."

It has to be said that the current infrastructure of the Zhou Dynasty is very poor.

Since immortal cultivators can fly and want to be more comfortable, they can ride on flying boats, so the nobles are not interested in building roads.

When the noble lord does not spend money to build roads, you can imagine how bad these roads are.

The roads are almost all dirt roads with lots of potholes. Especially on rainy days, the wheels often get stuck in the mud. On sunny days, dust is flying all over the sky.

Only a few of the roads are paved with gravel, which makes walking a little easier.

Zhang He requested the manufacture of large-scale transportation vehicles this time. On the one hand, the existing road surface had insufficient load-bearing capacity, and on the other hand, the road surface width was also insufficient.

"Unless Master, you even repair the road."

These technical people have long forgotten their superiority and inferiority when faced with technical problems, and they do not spare any mercy when they refute Zhang He.

Zhang He didn't care about this either. For technical people, there should be no restrictions on them.

"I am planning to build a road specifically for transportation vehicles."

Next, Zhang He explained the design of trains and railways to everyone.

He didn't say it before, he just wanted to see what people in this world would make of transportation.

It seems that everyone has inertial thinking and is still thinking about building an aircraft at this time.

"Now I just wait for you to design the finished product, and then I will organize manpower to build the road."

Everyone immediately entered into a new round of discussion. Zhang He did not interrupt anymore, but gently pulled Huya.

When Huya reacted, he led him out of the hall and the two of them entered a secret room.

"Sir! What are your orders?"

"We have recently added many golden elixir monks, and I need you to personally refine a batch of magic weapons."

When Zhang He said this, he took out dozens of jade boxes from his storage bag and placed them on the table one by one.

Huya opened a jade box, and a hot breath immediately came from inside.

"Are these purple-red fire obsidian?"

"That's right! I want you to use these materials to refine a batch of magic weapons. It's best to make some disguises on the outside so that no one can tell that they are made from purple-red fire obsidian."

Each of his golden elixir monks has a magic weapon made from purple-red obsidian. It looks very cool, but it can easily cause disaster. It is better to keep a low profile.

Zhang He made some requirements on the type of magic weapon and left the institute.

In the next few days, he found Wen Sheng again and handed him a batch of purple-red fire obsidian, asking him to take it out quietly and replace it with spiritual stones or other resources to bring back.

Zhang He now needs a large amount of spiritual stones. He wants to expand the space area and plant more spiritual medicines in order to cultivate more masters.

After making some arrangements for these, Zhang He entered the space and walked under the dark tree.

This tree was planted in the space by him and has been cultivated for more than a thousand years, but it has only grown a little, only a few inches.

The three fruits hanging on the branches have only grown a little, and there are still no signs of maturity.

Zhang He touched the tree trunk and felt the surging heat inside.

At this time, he picked a relatively straight branch, took out a magic weapon-level ax, aimed at the branch and chopped it down.

A small gap appeared on the branch, and at the same time, the surging heat in the branch instantly melted the sharp edge of the ax, creating a gap.

After repeatedly swinging the ax and chopping, the branch was finally cut down, and at the same time, the magic ax in his hand was completely useless.

The diameter of the cut branch was about the size of an egg, relatively straight, with only one black leaf hanging on it, and the branch was black from the inside to the outside.

Zhang He planned to refine this branch into a magic weapon.

He is now particularly fond of the fire element. A casual fireball can match the power of a strike from someone else's fire element magic weapon.

Last time in the underground world, I got a lot of top-quality fire-based materials, which can be put together to refine a magic weapon.

Before preparing to refine the weapon, Zhang He soaked these materials in spiritual spring water to improve their quality.

Refining fire-based materials is more troublesome, because they themselves have fire properties, and only higher-grade flames can melt them.

Many times, higher-level flames simply cannot be found, and materials cannot be smelted.

Finally, a weapon refiner came up with a way, which was to use the spiritual consciousness of the monks to guide the heat of the material itself, causing the internal flames to fall into chaos.

After the chaotic flames continued for a period of time, the original material structure changed and began to melt itself.

In short, it is to use spiritual consciousness to guide its internal heat and melt it before proceeding with the refining operation.