"You get an energy crystal (level 4), which triggers a hundredfold reward, and you get an energy crystal (level 6)."
The sound of the system being upgraded has disappeared, but Xiao Han still stood motionless on the spot, the ecstasy in his eyes uncontrollably revealed.
It wasn't until a while later that he bent down and picked up the spar on the ground. When he was sure that it was a level 6 energy spar, he said in shock: "I'll go, is it possible that this is a spiritual vein?"
Although I couldn't believe my eyes, the energy crystal in my hand couldn't be faked.
Logically speaking, he wouldn't be so excited.
But when the energy crystal is upgraded from level three to level four, the meaning behind it is completely different.
The length of the vein is more than 500 meters, and the crystals produced are below grade three, which means that this is a complete vein.
But if a fourth-level energy crystal is dug out from its depths, the quality of the energy crystal vein in front of you may reach the level of spiritual veins.
Even though its length is less than three thousand meters, it has not yet reached the standard of spiritual veins.
But since the fourth-level crystal is born inside it, it is possible to go further, and it is also possible to eventually grow into a spiritual vein.
"Spiritual veins!"
After saying something with some emotion, Xiao Han whispered softly: "If I build the city in this place, I don't know if I can manifest it together."
"I heard that in Tianshui City north of Kyoto, the reason why evolved people have a very high probability of appearing is because there is a ground line there."
"This is a higher-level spiritual vein. Once it is successfully manifested, the proportion of evolvers appearing in Jingan City will explode!"
Saying this, Xiao Han stood there and thought for a while, then continued softly: "If I want to build a city here, I must first figure out the general shape of this spiritual vein."
"Spiritual veins are also a type of soil, and there should be the possibility of manifesting them."
"But before that, I have to figure out its size and general direction. At least it needs to be completely wrapped in a city."
With this thought popping up in his mind, Xiao Han's face became even more excited, and he immediately got up and ran in the direction he came from.
It took less than ten seconds to cover a distance of several hundred meters.
Standing at the gap less than half a meter in diameter, he immediately waved the mining shovel in his hand and started digging upward along the black granite wall.
Dang! Dang! Dang!
Amidst the crisp knocking sound, a cave winding upward soon appeared behind him.
I don't know how much time passed, but Xiao Han suddenly discovered that the energy crystal he picked up from the ground could no longer be stored in the space ring.
"Let me go, are all the space rings filled?"
Muttering in his heart, Xiao Han turned to look behind him and whispered softly: "Although the digging is not a straight line, it is at least three or four thousand meters."
"This vein seems to be a lump, not a linear one!"
"How long will it take if I dig alone like this? I have to call in some people to figure out the shape of this vein as soon as possible."
"But there are no advanced underwater breathing agents for sale outside. Even if they come, they probably won't be able to get in."
After lowering his head and thinking for a while, Xiao Han immediately sent a message to Bayin, asking him to help purchase materials for refining underwater breathing potions.
In the Wandan Code, there are also recipes for underwater breathing potions, and there are even more advanced water-avoiding pills.
It's just that when I was in Stormwind City, I didn't have any need for this thing, so I never considered refining it.
Now!
Since we have planned to build a city in this place, we definitely need to refine it.
After all, this is the bottom of the sea, several kilometers above the ground. If the hole he dug, seawater would pour in.
By then, none of the players who have built a city here will survive.
So it is very necessary to make some preparations in advance.
"Ding!"
At this moment, there was a soft sound in his ears, and Bayin's message came back. Xiao Han opened it, took a look, frowned and muttered: "Does it take more than two hours to run here?"
Thinking that no one would be able to get through for a while, he seemed a little depressed.
But when I thought that this was Qianxi Island, with not only more than ten kilometers of land routes, but also several kilometers of water routes, I immediately felt relieved.
"Since it still takes a while, let's keep digging!"
After muttering softly, Xiao Han continued to wield the explosive ore crushing shovel with a spiritual weapon level and began to dig quickly.
Dang! Dang! Dang!
Amidst the knocking sounds, the level 5 energy crystals that were dug out were almost spread all over the ground.
But at this time, the space rings have been filled up. Even though it is a pity, there is nothing that can be done.
Along the black granite wall, a 45-degree slope winding upward slowly takes shape.
Dang! Dang! Dang!
I don't know how much time has passed, but Xiao Han is still wielding the explosive ore crushing shovel, and even the passage behind him is blocked by the falling level five energy crystals.
Maybe thirty minutes, maybe an hour...
Click!
Suddenly there was a soft sound, and Xiao Han was stunned for a moment, holding a torch and looking forward.
"Is it finally over?"
As he said this, he waved the mining shovel in his hand again and hit it with a few "dang-dang" sounds.
The hole the size of a bowl in front of him quickly expanded to be as tall as a person.
After kicking aside the fifth-level energy crystal on the ground, Xiao Han immediately got out of the hole and looked around while holding a torch.
The wall made of black granite is still extending upwards, and the end cannot be seen just by the brightness of the torches.
There was nothing else around, it was all the ground paved with energy crystals.
"First walk around and see how big this place is. If the side is 40,000 meters long, let's build the city here!"
Thinking that if he could manifest his spiritual veins, Xiao Han was even more excited and immediately started running quickly along the Xuangang stone wall.
Although his vision was not very good, his speed was not slow at all.
Every kilometer or so along the way, a torch will be placed to measure the circumference of the place.
Within a few minutes, he was back where he started.
"A total of thirty-six torches were set up, and the circumference is almost thirty-six kilometers."
After silently calculating in his mind, Xiao Han continued: "Although it's not enough for 40,000, it should be about the same."
"Hey, I set off thirty or forty torches, why can I only see less than ten now?"
Although the light source of the torch is not too far away, it can still be seen even if it is thousands of meters away as long as there is nothing blocking it.
But now, there are only eight fires that can still be seen.
Thinking that there might be something in the middle, Xiao Han's eyes lit up slightly and he immediately ran over quickly.
In less than thirty seconds, he saw a pillar with a diameter of more than five meters appearing in front of him.
But the strange thing is that this pillar is covered with densely packed dark yellow scales, and each one is the size of a washbasin.
