The Seven Kingdoms of the Eastern Border had each operated for many years.
If there were any important mineral veins, they would have already explored and excavated them.
Out of consideration for trade, even the people of the other dynasties had a rough idea of what mineral veins produced.
However, in Wang Ning's memory, he had never heard of the Eastern Tang dynasty discovering any mineral veins in Sushan County.
"Perhaps, like Longbei's turquoise crystal vein, it was hidden too deep. There were no traces of it before, so no one discovered it," Chen Xingwen said.
Wang Ning nodded, agreeing with him.
Before this, Longbei County had a huge turquoise crystal vein, but no one knew about it either.
But if that was the case, then there was a problem …
"How did Chang 'an discover these hidden veins?"
Wang Ning asked softly. "Longbei County is easy. Who knows how long they've been operating there? But Sushan County has always been under the control of the Li family of Eastern Tang. Chang 'an has just occupied it, and it hasn't even been a month! "
"They can do what others can't. Perhaps this is the reason for the rise of Chang 'an and the destruction of Eastern Tang."
Chen Xingwen said, "Everything we see now may only be the surface."
Wang Ning sighed. "It's not impossible …"
The two of them walked together to the depths of Sushan County and came to the mine.
The cultivation base of the guards here was far inferior to the prisoners.
But none of the prisoners could cause trouble.
Everything in the mine was in order.
Chen Xingwen and Wang Ning's arrival aroused the suspicion of the supervisors and guards.
They were only allowed to enter the mine after several inspections.
The two elders of Misty Sky Peak didn't mind. It was already rare for them to be able to visit Lin Ying here.
The two of them went all the way down into the mine.
As they walked, Wang Ning suddenly said softly, "This is even deeper than the turquoise crystal vein."
Chen Xingwen nodded silently and didn't say anything.
After walking for a while, they still didn't see Lin Ying. Instead, they saw another person.
Xiao Kun, an elite of the Southern Liang imperial family and the brother of King Liang.
Even though Northern Qi and Southern Liang were separated by a great distance, the two elders of Misty Sky Peak immediately recognized Xiao Kun, an eighth-realm elite.
However, when Xiao Kun saw them, he didn't say anything and just covered his face and left.
The other party's rudeness didn't anger Chen Xingwen and Wang Ning.
They felt even more distressed.
Chen Xingwen had almost met the same fate as Xiao Kun, and Wang Ning himself had once been a coolie in the Turquoise Stone Crystal mine.
They were extremely clear about Xiao Kun's feelings.
After watching Xiao Kun leave, Chen Xingwen and Jian Wushuang continued to descend.
After a while, Wang Ning asked again, "Brother Chen, can you tell what kind of mineral this is?"
Chen Xingwen ran his finger along the wall of the tunnel. "I'm not sure, but this looks like … Mountain God Rock?"
Wang Ning felt his throat go dry. "To be honest, I think so too."
The Divine Mountain Rock was almost extinct in the Eastern Border.
Only the Nanliang Dynasty produced a small amount of it, and the supply could not meet the demand.
The mineral veins were occupied by the Nanliang royal family, and most of the ores were supplied to the royal family. Only a small portion would end up on the market.
And every time, it would be swept clean in an extremely short period of time.
The Divine Mountain Rock was mainly used by martial artists to train their Qi and blood.
To other cultivators, it was not as useful as the Turquoise Stone Crystal.
However, to Martial Dao cultivators, this was a treasure that was even better than the Turquoise Stone Crystal.
Misty Sky Peak was also a Martial Dao sect. At this moment, Wang Ning's voice was a little hoarse. "I wonder how much Divine Mountain Rock is produced here."
Chen Xingwen did not answer and observed silently.
The results of his observation made his heart surge.
This was clearly a huge mineral deposit.
The mineral veins in Nanliang probably did not have as much reserves as here.
The Eastern Tang was really sitting on a treasure mountain previously!
The two of them continued to descend. At the bottom of the current mine, they successfully found their sect master, Lin Ying.
"Why are you here?" Lin Ying's emotions were still calm. "Did Chang 'an give you freedom? Or did they ask you to come to me for something? "
"The two of us have already been given freedom by Chang 'an."
Chen Xingwen said shamefully, "I'm just ashamed that you have to suffer here because of us, Senior Brother Sect Master."
"It's okay. I'm the son of a blacksmith. I'm used to doing rough work since I was young. Now that I have cultivation, it's much easier than when I was young."
Lin Ying himself was very calm. "Other than the two of you, how are the others? Are they free like you, or do they still have to work? "
"Most of them are like us. They have already regained their freedom." Chen Xingwen said, "Only Gao Jun, Yulin, and a few others are still imprisoned to work."
"They are hot-tempered." Wang Ning smiled bitterly.
"Between the same sect, there needs to be hot-tempered people and also gentle people. Only then can we help each other."
Lin Ying said, "Don't rush back to the sect. Just send the secret message back and let the sect know about the situation. Don't worry. Be careful when you send the message. Don't let the royal family of Northern Qi intercept it."
Chen Xingwen nodded. "I understand. Senior Brother Sect Master, don't worry."
After a pause, he asked, "The Eastern Tang has already fallen into the hands of Chang 'an. Regarding the future of Chang' an and Northern Qi, as well as the path our sect should take, Senior Brother Sect Master, do you already have an idea?"
Lin Ying said, "I can't say too much. I can only say that Chang 'an has masters who have surpassed the Ninth Realm. Not to mention Northern Qi, even if the other six nations of the Eastern Border joined forces, they would find it difficult to defeat Chang' an."
Wang Ning nodded. "I think so too."
Chen Xingwen let out a long breath. "Then I'll send a letter to the sect later."
"Thank you for your trouble, Junior Brother Chen," Lin Ying said.
Zhang Dongyun did not stop Chen Xingwen from sending a letter to Misty Sky Peak.
He was clear about the contents of the letter. He was naturally very welcoming of more people coming to join Chang 'an and work for him.
Master Zhang did not plan to let Lin Ying stay in the mine for too long for such people who were more sensible and sincere.
Using a Ninth Realm master to mine was naturally better than using Seventh and Eighth Realm people.
However, Chang 'an controlled a large area of rapid mining, and Invincible City could not possibly cover all of the Hundred Counties of Tang.
To deal with enemies from all sides, Master Zhang needed some capable fighters.
This way, it would be easier for him to earn the reward for the Defender mission.
After all, after triggering the Defender mission, he had to take down the target on the spot. Otherwise, even if he caught the target again, there would be no reward.
At times like this, a Ninth Realm master was more useful than an Eighth Realm master.
As for mining, there was no need to worry.
He had quite a lot of manpower.
Other than Lin Ying, Xiao Kun, and the others in the Mountain God Rock mine in Sushan County, there were also the disciples of the Green Cloud Temple's Taoist Michito and Taoist Huangye.
There were also Taoist Jing Tong and Taoist Xuanfeng from Qingbokgung.
At the Jade Turquoise Crystal mine in Longbei County, Zhang Dongyun put Taoist Master Qing Ye, a Ninth Realm master, in charge of the defense.
Along with him were the Old Prince of the Eastern Tang, Li Dong, King of Tang's younger brother Li Xuannian, the King of Tang's second son Li Yi, the head of the House of Stuart's family, Situ Jinsheng, and many other Eighth Realm masters to act as excavators.
At the Xifeng Iron mine in Xihai County, Yan Sheng, the Deputy Dean of Northern Qi's Shuofeng Academy, Lu Chen, the Dean of Nanliang's Chansheng Academy, the old monk Fa Xin, and the Commander of Western Chu's Shadow Guards, Tang Ze.
In short, there were quite a lot of people acting as "excavators".
Apart from the three mines, there were also other kinds of attacks, allowing these cultivators to fully utilize their strengths.
In Daming Palace, Zhang Dongyun smiled in satisfaction.
In front of him, there was a piece of dark blue rock that was taller than a person. There was a faint glimmer coming out of it.
If such a large piece of Mountain God Rock were to be leaked outside, it would definitely cause a commotion.
No matter how extravagant a person was, they would still divide it so that it could be used by more people.
But now, it was exclusively for Zhang Dongyun.
He stretched out his palm and pressed it against the huge rock.
As his murderous aura reached its peak and engulfed the Mountain God Rock, the luster on the rock's surface became more and more dazzling.
Zhang Dongyun could feel a rebounding force flowing out of the Mountain God Rock and into his body.
In the process of the exchange of murderous aura and Spirit Qi, Zhang Dongyun could feel his own murderous aura becoming purer and more condensed.
If he persisted for a long time, he could quickly condense his murderous aura and reach Martial Artist Eighth Realm.
It took him a few months to go from Fifth Realm to Sixth Realm.
Normally, it would take him at least half a year to a year to break through from Sixth Realm to Seventh Realm.
And this was under the condition that he was a Spirit Stone Jade Embryo, with the Spirit Qi of Invincible City and the help of the Jade Turquoise Crystal.
If it were someone else, they might not be able to break through after a few years, a decade, or even decades.
There were many Sixth Realm martial artists who were stuck below Seventh Realm for their entire lives.
Even if a normal person consumed the Mystic Essence Fruit, they would not be able to break through from Sixth Realm to Seventh Realm in such a short time.
On the other hand, Zhang Dongyun had only used a few months on top of his original foundation and the help of the Profound Essence Fruit. The time taken was no longer than the time taken for him to go from the fifth realm to the sixth realm.
But from Seventh Realm to Eighth Realm, theoretically, he would need a longer time.
Unless there was new help.
Master Zhang was still worried about this.
After all, Invincible City only lasted for a year.
But when the Invincible City system expanded Sushan County, Zhang Dongyun quickly discovered that there was a Mountain God Rock mineral vein hidden in the depths of the mountain.
With this, it would be much easier for him to break through to Eighth Realm.
This would save him a lot of time.
In the following days, Master Zhang slowly built a "communication network" while focusing on his own cultivation.
His murderous aura became purer and purer.
One day, the spy the Idle Sky Palace placed in the Western Zhou Dynasty suddenly sent back a message.
In the Western Zhou Dynasty, a sect called the Barren Thunder Sect sent a secret messenger to contact them, hoping to meet the person in charge of Chang 'an.
From what they revealed, it was not an alliance or contact.
Instead, they wanted to directly submit to Chang 'an and become Chang' an's spy in the Western Zhou Dynasty.
This news immediately caught Blood Shadow's attention and he reported it to Chang 'an.
This was because the Barren Thunder Sect was not a small sect, but one of the top three martial arts sects in the entire Western Zhou Dynasty.
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