One step closer to the goal of 1 billion system upgrades, the joy in Lin Yuan's heart is indescribable, as long as he can become an eight-grade elixir master, his spiritual power will get a qualitative leap. At that time, his combat power will naturally be greatly improved, and no one will be able to threaten him under the Feather Realm.

"Huh?"

Lin Cheng snorted lightly, and found a rather strange black stone in the location where those treasure chests were located just now. The stone looks the size of an egg, but the shape is like a pentagram, and there is an indescribable sense of mystery.

If it was just a stone with a peculiar shape, of course it wouldn't attract Lin Cheng's attention. But the point is, Lin Cheng had obviously included all the things here in the Qiankun Heaven and Earth just now, how could there be such a stone left?

"Is it ......?"

As if thinking of something, Lin Cheng subconsciously wanted to put this black star-shaped stone into the Qiankun Heaven and Earth. No matter how he tried, this black stone seemed to have some kind of magical power, and it always resisted the power of the world.

Can't be stored at all!

This is really a rare thing, Lin Cheng put this stone in front of him and looked at it for a moment, but he couldn't see the special thing in it at all.

No matter how you look at it, it's just an ordinary stone with a strange appearance. Even if he tried to urge it with his true yuan and spiritual power, he didn't have the slightest reaction.

His intuition told Lin that this stone might be of some use in the future, so he carefully put it away. He was also secretly guessing, I am afraid that Chen Gang also did not know the origin of this stone, so he put it here.

"It's time to get out of here......"

The things he wanted had already arrived, and of course there was no need for Lin Cheng to continue to stay here. But just as he exuded his spiritual power and was about to perceive the movement of the outside world, he accidentally discovered that there was an extremely faint fluctuation of spiritual power under his feet!

At the same time, the spiritual prohibition that surrounded this underground treasure house was more like someone had activated it, forming a spiritual power cage in an instant, completely sealing the original tunnel!

"Did I get discovered?!"

Lin Cheng was shocked in his heart, this was his first thought. If it hadn't been exposed, the spiritual prohibition here would never have changed for no reason, this must have been an organ set up by Chen Gang in advance!

"It's this lock!"

Within a moment, Lin Cheng immediately discovered the real mechanism. It is the lock that locks the fire spirit treasure chest, and this lock has a trace of spiritual power on it, which is just connected to the spiritual prohibition here, and it can even be said to be the central connection point of this spiritual prohibition.

As long as someone touches this lock, it will naturally trigger all the spiritual forbidden powers, forming a mental power cage in an instant, trapping the thief in this underground treasure house. Of course, just a spiritual prohibition is not difficult for Lin Cheng at all. As long as he is willing, he can use his powerful spiritual power to forcibly break this prohibition at any time.

But he couldn't do this, although Chen Gang was not in the City Lord's Mansion now, but there were still strong people like Shan Zuo and Xiang Peina in the City Lord's Mansion. As long as he causes the slightest movement in this underground, it will definitely attract the attention of those strong people.

The strength of these people is only stronger than Chen Gang, not weaker, and with Lin Yan's current strength alone, it is absolutely impossible to retreat from their hands.

"I've really underestimated this city lord!"

Lin Cheng's face was a little ugly, the so-called old man became a fine man, although Chen Gang was just a city lord in Dafeng City, he was not a character at all in the imperial capital.

But this man's mind is quite cautious, and he calculates one ring after another, and he really keeps his underground treasure house quite well. Today's Lin Cheng is tantamount to falling into a dilemma. It's not to go, it's not to go, no matter which choice you make, it's likely to be a dead or.

I have to say that Chen Gang's design is indeed very powerful, but it's a pity that he encountered Lin Cheng. Since Lin Cheng is now trapped here by the cage of spiritual power, then he simply stays here first, refines all those fire essences, and cultivates them into the heart of fire first!

As long as the Heart of Fire is refined, Lin Yuan's cultivation will definitely break through from the Immortal Mansion Realm to the Adverse Destiny Realm! At that time, his strength will increase greatly, and with the original hole cards, I am afraid that even those Feather Realm powerhouses may not be able to do it if they want to keep him here!

"Demon Heaven Xuandian!"

As soon as his mind moved, Lin Cheng's mind was filled with the operation of the Heart of Fire, and he placed the more than 100 pieces of fire essence in front of him and sat cross-legged.

Call!

His chest bulged suddenly, and wherever his spiritual power went, the rich energy in the fire essence was absorbed in his body. The blazing energy poured into the flesh and blood through the pores of his body, and with the help of the transportation of True Yuan Blood Qi, he went to the same end without the slightest waste, and entered his heart!

At this moment, his heart seemed to be baked on the stove, and the pain in his heart made even Lin Cheng, who was extremely strong-willed, couldn't help but snort.

And this kind of pain will only intensify in the next process, and only by surviving this painful pain of refining the mind can we achieve the true heart of fire.

The power of fire belongs to my heart, and I will control the essence of heaven and earth, and quench its tenacious body!

Time passed bit by bit, and the clothes on Lin Cheng's chest had already been burned by the intense heat, and from his heart as the source, the skin on his body was like a boiled shrimp, red and hot.

In particular, the place where the heart is located is as hot as magma, and ordinary people may burn it on the spot if they touch it even slightly.

The power of such a strong fire gathered together, and the movement caused by it would naturally not be small. Fortunately, this place was underground, and there was also the restriction of the cold jade box, so the extremely strong heat did not spread to the city lord's mansion. What's more, Lin Cheng's heart absorbed all the power of these fire essences, and there was not too much energy escaping.

Even if the people on the ground could really notice something unusual, they just felt that the ground was a little hot. And this is the City Lord's Mansion, and those people from the top forces are guests, so naturally there may not be many people who will delve into it. After all, the world of martial artists is bizarre, and anything strange will happen.

......

On the other side, the space teleportation circle is located.

Chen Gang and the others had already arrived here, and the people who participated in the Panlong Club this time, including Lin Yuan, all gave up halfway for various reasons.

Because of this, there are only three people who came here this time to wait for the spatial teleportation circle to open. They are Jiang Tianchen, Lin Dong and Lu Lingyu.

It is worth mentioning that Lu Lingyu has not recovered from his injuries since he was cut off by Lin Cheng last time, and his pale face is enough to explain everything. But he had to come here, for no other reason, just because he was absolutely sure that he would be able to win the chief position of the Panlong Club this time!

Don't forget, last time he teamed up with Chen Gang to wipe out the army of the Blue Wolf Country in that entire stronghold, and all the wolf tooth pendants left behind were in his pocket. Even a character as strong as Jiang Tianchen would never be able to obtain so many wolf tooth pendants in just one month.

He is confident that there is no second choice for the first place in this Panlong Club except him.

"Lu Lingyu, it's really rare, you are so desperate this time. Even one hand was buried, so you must have absolute certainty of winning the top spot, right?"

Lin Dong glanced at Lu Lingyu, who had a broken arm, and sneered.

Lu Lingyu is good at using intrigue and trickery, always inadvertently killing people, and is regarded by most people as a poisonous snake, so his reputation among the younger generation is extremely poor, and his popularity is naturally not good. Coupled with his hostile attitude towards Lin Cheng, Lin Dong naturally wouldn't have any good attitude towards him.

"So what?"

Lu Lingyu sneered, and sneered: "Even if I can't get the position of chief, I won't be able to take your turn Lin Dong." You just keep being a dog for that damn Lin Cheng, I don't think you will be able to do anything in the future. It's really sad that as the heir of the head of the Lin Valve family, he would have fallen to such a point......"

"That's better than you cripple. ”

Lin Dong said with a smile.

As soon as these words came out, Lu Lingyu's face suddenly became extremely ugly, and a gloomy color flashed in his eyes. The revenge of the broken arm, he will have to find Lin Cheng to come back sooner or later, this is the shame of his life.

Chen Gang glanced at Lu Lingyu inadvertently, and his heart was also a little strange, it stands to reason that Lu Lingyu's strength and scheming should not be reduced to this point. However, he didn't care much about Lu Lingyu's life or death, anyway, the two sides were just a short-term cooperative relationship, and it was not a deep friendship.

What's more, as a court official, if he has too deep a friendship with the people of the sect, it is definitely not a good thing, and I am afraid that it will greatly affect his career. The most important thing for him is to have a good relationship with the third prince Jiang Tianchen, and only this master can really help him be promoted.

"The hour has come, ready to open the big array!"

Chen Gang coughed lightly twice, interrupting the-for-tat confrontation between Lin Dong and Lu Lingyu. The grievances between these two people have nothing to do with him, what he wants to do most now is to send Jiang Tianchen and the others back to the imperial capital as soon as possible, and after completing his task, he will directly return to the City Lord's Mansion, retreat to absorb the fire essence, and impact the Heavenly Palace Realm.

Compared with the major event of impacting the Heavenly Palace Realm, just one Lu Lingyu is not qualified to be taken to heart by him.

"Huh?"

But just as he was about to open the spatial magic circle, a spiritual light suddenly flashed through his mind, and his face suddenly became gloomy as water.

In the depths of that look, there is an amazing killing intent flashing from time to time!

Someone had the audacity to break into his underground treasure trove!

The mental prohibition he had set up in advance, as soon as it was triggered, he would sense it at the same time. And the location of the underground treasure house, apart from himself, there is no second person who knows it, not even his son Chen Yushu!

Now that the spiritual ban has been triggered, you don't have to think about it to know that someone has broken into the underground treasure house and stole the box of fire essence that he regarded as life!

This is simply breaking ground on Tai Sui's head!

Almost subconsciously, Chen Gang's incomparably cold eyes immediately locked on the innocent monk who was always there and acted as a bystander.