Three days later, the 20,000 times the innate aura here finally thinned out by a tenth.

At this time, Lu Chen was completely in a state of ecstasy, and suddenly there was a dull explosion in his body.

Click!

Break through!

The three-pole bigu finally passed smoothly!

Finally promoted to the four poles of Tiangang!

Double the basic strength, eight billion catties!

Of course, Lu Chen's combat power also doubled accordingly!

Quadrupole Gathering Spirits!

The four poles of the sky, gather aura!

The cultivation method of the four poles of Tiangang is to gather the spiritual energy inhaled into the body, continuously compress and expand the capacity of the spiritual energy.

Once the capacity of aura reaches its limit and cannot be expanded, the realm will automatically break through!

Among the nine poles of the Tiangang Realm, the three poles and the four poles have no cultivation bottlenecks, and are the easiest poles to cultivate. Most warriors will pass it smoothly, and few people will get stuck on these two poles.

It's just that different physiques, different exercises, and different lengths of time are used.

The four poles gather spirits, and for normal warriors, the difficulty of cultivation is very low.

But Lu Chen didn't know what to say about the difficulty of cultivating spirit gathering?

It may be more appropriate to describe it with a sentence of dumbfounding.

Four poles gather spirits, Lu Chen has advantages and disadvantages.

The advantage is that the extraction of aura is fast enough!

The disadvantage is the place where spiritual energy gathers!

Others practice the four poles of the Tiangang, and the aura gathers in the dantian.

How much spiritual energy can a small dantian gather?

With so much aura in the world, the dantian can be expanded to the limit in no time, so you can easily break through.

But Lu Chen didn't have a dantian, and his aura didn't gather in the Chaos Orb, but in the Wumai!

Martial veins are strong, the easiest to expand, and the capacity is infinite, the limit is countless times that of the dantian!

The martial veins in Lu Chen's body are dragon veins, which can be separated from the body to strengthen his body.

The dragon's veins after separation are like a big dragon, with a width of several feet and a length of hundreds of feet. How much spiritual energy is enough for it to eat?

What's more, Lu Chen didn't have one dragon vein, but two...

Thinking about it, Lu Chen felt one head, two heads!

But there is no way, the way of cultivation of the four poles is like this, there is no second way to choose.

Lu Chen had no choice but to bite the bullet and practice. Anyway, he draws spiritual energy quickly, so it shouldn't be very slow to break through the five poles.

A large amount of spiritual energy was sucked in, swallowed by the two dragon veins, gathered in the two dragon veins, and then compressed into the size of fine sand.

The two dragon veins devour the spiritual energy, like two bottomless abysses, no matter how much spiritual energy there is, they all accept it, and no amount of spiritual energy is enough for these two creatures to eat.

Lu Chen smoked for several hours. After countless spiritual energy entered the two dragon veins, it was like a small stone thrown into the sea, without even a drop of water.

Lu Chen checked the two dragon veins, and found that there was only some fine sand-like gas in the dragon veins, which was formed by the compression of a large amount of spiritual energy, which did not take up much space in the dragon veins.

That's it……

After pumping the spiritual energy for several hours, there is only such a small effect. Waiting for the fine sand gas to fill the dragon's veins, wouldn't it be the year of the monkey?

For a moment, Lu Chen felt desperate!

But there is no way, despair is despair, and cultivation still needs to be carried out.

Martial arts journey, cultivation is difficult, who hasn't despaired?

Lu Chen continued to practice, and continued to extract the aura of heaven and earth, and the speed of extraction was getting faster and faster.

After being promoted to the fourth pole, the speed of absorbing spiritual energy has been accelerated.

In addition, the cultivation method of the four poles is to absorb spiritual energy, so Lu Chen's extraction of spiritual energy is almost to the extreme.

It's a pity that Lu Chen doesn't have a dantian, otherwise, with this speed of drawing spiritual energy, he would soon be able to expand his dantian to the extreme, and it probably wouldn't take an hour to break through.

Ten days later, the 20,000 times the innate aura here was thinned by half by Lu Chen!

And the two dragon veins still haven't changed, it's just that there is a lot of fine sand gas in the body. According to this situation, if the fine sand is to fill the dragon veins and reach the extent of the expansion of the dragon veins, it will not work in ten or eight years.

Ten or eight years?

Can't!

Speed ​​is the most important thing in a journey of cultivation, and the golden time of ten or eight years must not be wasted.

That being the case, Lu Chen knew that he couldn't go the normal way and had to find another way.

Just as Lu Chen was thinking about how to quickly tackle the problem, Feilong came again.

Feilong brought the sect call-up order, asking Lu Chen to lead the fanatical army into the Great Demon Cave to participate in the battle.

"Another summons?"

Lu Chen frowned, touched his chin, and asked dissatisfied, "This time, who recruited us again?"

Lu Chen is currently researching the four poles, and he doesn't want to enter the Great Demon Cave to fight until he solves the four poles.

Last time, it was Jin Qianyin who missed him, so he issued a call-up order, so what about this time?

Who is recruiting again?

Could it be Elder Liao?

"It was recruited by Elder Zheng of the defensive city."

Feilong said.

"Elder Zheng?"

Lu Chen felt strange, and couldn't help but said, "I don't know him, how could he recruit me?"

"I don't know, anyway, the call-up order is real."

Seeing Lu Chen's reluctance, Fei Long said again, "Brother, you don't want to think about it, do you? The call-up order is very powerful. If you disobey, the sect will punish you severely. Unless, you ask the ancestor , then nothing will happen.”

"Why are you looking for my master, you are being scolded?"

Lu Chen shook his head again and again, and then said, "Forget it, since the call-up order has come down, let's go for a while."

His master had told him that the Great Demon Cave of the Xuantian Dao Sect had been open for a long time, and there were frequent wars, which made him very dangerous.

But he still came secretly. At present, there are four poles, and there is no seven poles yet, so he can't let the master know.

He even felt that if he got along well, he wouldn't look for his master when he reached Qiji, and wouldn't it be better to surprise his master when he broke through to the Xuanming Realm?

Lu Chen asked Feilong to go out to gather the army, then got up from the beast blood pool, washed his body with water, and then dealt with Xiaoyu's problem.

Under the action of the Zihuo Xuan Beast Pill, the fire fox's beast fire has been strengthened, burning to the extreme, and it is in the process of advancing!

In other words, so many days have passed, Firefox has not yet completed the advanced!

This is a bit troublesome, the advanced level of wild beasts is very violent and aggressive, and it is often very dangerous that the relatives do not recognize each other.

At this time, it is best not to put Xiaoyu into the Chaos Orb, lest Firefox hurt Xiaoyu.

And Xiaoyu was still sleeping soundly. After sleeping for so many days, she still slept soundly.

Xiaoyu grew up in sleep, and her body size has grown a lot, bigger than a large dog, almost catching up with a pony.

Xiaoyu's aura is also getting stronger and stronger, and her divine power is getting bigger and bigger. It seems that the Chaos Orb has nourished Xiaoyu well. Even if Xiaoyu sleeps outside, she can easily advance.

But now, Lu Chen was about to go on an expedition, so he could neither put Xiaoyu into the Chaos Orb, nor dared to leave Xiaoyu alone.

Xiaoyu is in the process of advancing, and Lu Chen can't wake up no matter how much he screams, this is troublesome.

Could it be that he carried Xiaoyu on his back to the demon cave?

Lu Chen slapped his head, yes!