Keqing, who was born in a big family, has good knowledge and quality.

It can't be said that he is more knowledgeable than the scholars at the Academy of Education, but at the very least, he understands basic elements and even basic world phenomena.

However......

Today, all the previous knowledge has been overturned.

Because she witnessed a man falling into a lava pool and bathing intact.

Then, she looked helplessly at an iron bucket containing at most one thousand water.

A cubic meter of water was poured out.

And this is just the beginning.

That cubic meter of water looked like some evil creature was squirming.

Under her nose, it spread rapidly.

From one cubic meter to several cubic meters.

In fact, Keqing has reluctantly accepted everything up to this point.

After all, isn't that what the ornamental fish tank is used for in Jiang Xuan's villa?

What really makes Keqing, and even others, madly doubt life.

After the bucket of water was poured out, it spread endlessly, extending downwards, from a cubic meter in size to a size that could fill a swimming pool.

And wait until the water comes into contact with the magma.

There was almost no elemental reaction or other reaction. In an instant, the magma turned into a large area of ​​obsidian.

Jiang Xuan jumped into the water and landed slowly on the obsidian along the water column.

Then he picked up the iron bucket with his backhand and exchanged it for a bucket of water, and walked to the edge where the obsidian and the magma were in contact.

As before, repeat the operation.

Pour water to form obsidian, change water, pour water...

As everyone watched, Jiang Xuan filled water in an iron bucket.

The originally invisible magma pool turned into a flat obsidian land.

Liu Yun, who was standing above, pursed his lips and said with some complicated emotions:

"Is this...a method of land reclamation involving laws?"

"maybe...………"

Zhongli replied dully, turned around and jumped down, landing on the water.

Six blocks apart, he was not injured at all when he fell on the water.

Zhongli also reaffirmed the strange rule that when landing from a high altitude, there will be no water damage.

Hearing Zhongli's movement, Jiang Xuan also turned around. In a short time, he had filled the magma pool with a radius of several hundred meters.

He waved his hand and shouted:

"When you come down, put the torch on first, and then look around to see if there are any diamonds."

As soon as they landed, everyone looked at each other and silently took out their torches and began to place them.

Keqing followed Ningguang absentmindedly.

Ning Guang was thoughtful and naturally understood why Ke Qing was distracted.

After placing the last torch, Ningguang turned to look at Keqing with a serious look on his face.

"Are you shocked by Jiang Xuan's behavior of filling the magma? Logically speaking, you entered earlier than me, so you should be more likely to accept these unreasonable phenomena."

Ke Qing's eyes brightened again, she turned around and glanced at Jiang Xuan, who was still filling the edge with magma, and shook her head slightly.

"I was thinking about something just now..."

Ningguang said nothing, but looked at Keqing quietly and elegantly, like the most qualified listener.

Keqing didn't show off, and after thinking for a moment, she said softly:

"Jiang Xuan's ability to store water and magma in iron barrels is amazing. I was thinking..."

"Can we take advantage of this characteristic to expand Liyue Port?"

"After reaching cooperation with Jiang Xuan, Liyue's various businesses will definitely become more and more developed."

"So, we have to make some plans for Liyue Port in advance. If we can make use of the sea area without affecting the normal berthing of ships..."

"Jiang Xuan, the magma and water in this world are absolutely cost-free technical means of land reclamation."

"What do you think?"

After hearing this, Ningguang had some shocking thoughts in his heart.

But the matter of land reclamation is actually a bit sensitive. At the very least, it would definitely not be possible for the two of them to talk about it.

However, Ningguang actually didn't want to reject Keqing's plan. She also wanted Liyue Port to be bigger and richer.

She thought that from now on, Liyue Port would no longer be in the same poverty-stricken situation as when she was a child.

More active development is necessary.

After pondering for a moment, Ningguang neither refused nor denied, but said softly:

"This matter is of great importance, and the opinions of the two of us are a bit weak. It is better to wait until Xian Dianyi is consulted with the emperor.

Although Keqing wanted to handle this matter vigorously and resolutely, what Ningguang said made sense.

She is dedicated to Liyue.

but.......

People's words are terrible.

After thinking about it, Keqing decided to help Jiang Xuan dig the diamond first.

The two quickened their pace and walked to Jiang Xuan.

At this time, Gan Yu and Liu Yun were wielding pickaxes and hitting obsidian.

And Jiang Xuan, looking at Gan Yu and Liu Yun wielding pickaxes to smash the obsidian, looked hesitant to speak.

From just now to now, Jiang Xuan has wanted to remind them many times that a pickaxe cannot dig obsidian.

But Gan Yu and Liu Yun, who were in high spirits, obviously didn't give Jiang Xuan a chance to speak.

"I*......"

Ningguang walked over and glanced at Gan Yu, who was waving continuously with a puffy face.

Looks like a little hamster trying to build a nest.

But visible to the naked eye, the obsidian did not move at all.

You know, even in relatively hard iron ore, Gan Yu can break out cracks with a few pickaxes.

This obsidian......

Not moving at all!

Immediately, Ningguang cheered up.

"Jiang Xuan, this obsidian...seems to be very hard!"

Jiang Xuan nodded with a wry smile, spread his hands and said:

"Obsidian is one of the hardest minerals in the world, even TNT..."

Jiang Xuan, who was about to talk about using obsidian to prevent explosions, suddenly remembered that no one had seen what TNT was.

He immediately changed his words:

"Even if the creeper explodes, it can't damage the obsidian, so this thing has many uses.

“In addition to building hell portals, you can also use obsidian to build fortifications and even prison fortresses.

"You know, if you don't have a diamond pickaxe, no other pickaxe can dig obsidian."

As soon as he finished speaking, Gan Yu and Liu Yun, who were digging vigorously, froze.

Even Keqing stopped preparing to dig and silently took back his pickaxe.

"Jiang Xuan!"

Gan Yu's face turned red, he looked at the obsidian, and then at his pickaxe.

He said with a hint of resentment in his tone:

"Are you deliberately trying to embarrass me?"

Although they were words of complaint, the kind-hearted Gan Yu could not bear to complain about Jiang Xuan.

His tone was full of embarrassment about his behavior.

Jiang Xuan looked at Gan Yu helplessly.

"I wanted to say it, but you didn't give me a chance...

"Come up and start digging with a pickaxe. Besides...

Jiang Xuan pointed to the ground and said with a smile:

"Gan Yu, haven't you ever thought about it? The obsidian we are stepping on is on top of magma."

"You are still running a chain collection. Once you dig it out, won't everyone fall into the lava? I didn't stop you in such a dangerous situation. Didn't Gan Yu feel something was wrong?"

Although he was talking to Gan Yu, Liu Yun, who was also a participant on the side, also had an awkward look in his eyes.

After a long while, he coughed dryly and forced his respect.

"I...I have actually made a guess for a long time, but I also wanted to test the hardness of the obsidian.

"It turns out that obsidian is very hard and can be used as a cage to imprison powerful criminals or to build fortifications."

"Ahem... I'll go find the diamonds, and I'll leave the rest to you.

After saying that, Liu Yun quickened his pace and left here in a hurry.

It's just that the back is more or less embarrassed.

Seeing this, Jiang Xuan also laughed dumbly and gently rubbed Gan Yu's head.

"Okay, let's go look for diamonds too. This is the most important thing in going down to the mine this time.

After all, diamonds and obsidian are the foundation for starting the era of enchantment.

Of course, if the village where Jiang Xuan lives has an enchantment table, he won't have such trouble.

However, the poor plunderers in that village shed tears when they saw it.

Cursing in his heart, Jiang Xuan raised his head and looked at the top of the mine.

Keqing originally wanted to ask Jiang Xuan what he thought about Liyue Port's land reclamation, but after seeing the expectation in Jiang Xuan's eyes.

Still silent, she helped him find the diamond.

However, the entire magma pool has been searched, as well as the top of the head and the surrounding walls.

No trace of diamonds at all.

Jiang Xuan was thinking about giving up. Suddenly, Liu Yun not far away shouted.

"Jiang Xuan, come quickly! I seem to have discovered a diamond!"

Everyone was stunned and immediately ran towards Liu Yun. Jiang Xuan was still worried that Liu Yun would dig directly, so he replied loudly:

"Don't dig yet! Wait for me to go over and take a look!"

Fortunately, Liuyun passed the incident where the gold mine needed to be collected and mined accurately, and the obsidian needed to be mined with a diamond pickaxe.

He is no longer the reckless person who grabs a pickaxe first when encountering minerals.

Wait quietly for Jiang Xuan and others to arrive.

Of course, everyone arrived at 567 without waiting long.

This is a narrow passage and does not belong to the magma pool filled by Jiang Xuan.

It's quite inconspicuous. It's pitch black ahead and I can't see what's there, but it's definitely a mine passage.

Liu Yun pointed to the three connected ores on the ground and said:

"I accidentally discovered this path just now. I walked over and lit a torch and discovered this. It should be a diamond mine, right?"

Jiang Xuan looked at it carefully and suddenly smiled.

"That's right! It's a diamond mine! Just three of them, enough to make a pickaxe."

After hearing this, Mandrill immediately stepped out of the queue and said actively:

"Let me dig, Mr. Jiang Xuan, can I use a pickaxe?"

But Jiang Xuan shook his head slightly.

"Let me do it this time. Iron pickaxes can indeed dig diamond mines, but there are still some skills."

With that said, Jiang Xuan stepped forward to demonstrate in person.

When playing games in his previous life, he had been careless more than once. When he saw a diamond mine on the ground, he dropped his pickaxe and the diamonds fell into the magma sheet below.

This is a lesson learned in blood and tears.

"You cannot dig directly when you find a diamond. It is best to turn off the chain and dig in the stone area around the diamond.

"Dig out the stones and make sure there is no magma under the diamond mine before digging the diamond mine."

As he spoke, Jiang Xuan dug out the boulders next to the diamond, and after digging down one more space, he saw hot magma as expected.

A trace of joy flashed in Jiang Xuan's eyes, thanks to his relief this time.

Otherwise, Jiang Xuan would be really distressed if the diamond he had worked so hard for two days suddenly fell into the magma.

"You see it."

Jiang Xuan pointed at the magma and said helplessly:

"If you don't pay attention, not only will the diamond fall in, but you will also be in danger."

"So, you must be careful when digging for diamond mines."

Conveniently blocking the magma with stones, Jiang Xuan chained away the three diamonds that he had longed for.

The moment the ore exploded, dazzling diamonds fell to the ground.

Against the backdrop of the lava and torches, it is stunningly beautiful and gorgeous.

"diamond…….……"

Jiang Xuan picked up three diamonds with a little emotion in his eyes.

"Finally...I finally have a diamond..."