This Heavenly Dao breath is also nourishing the sea of knowledge, allowing the sea of knowledge to expand, nourishing the soul and strengthening the soul, this feeling of the strength of the soul makes Mu Chen a little fluttering.

Three-body one, all ascended, is this the foundation of the Heavenly Dao? Mu Chen was immersed in such a wonderful and could not extricate himself.

These days, Liu Shi talked to Mu Chen about a lot of key points for building a foundation.

Using the foundation building pill to build a foundation to build a layer of foundation building platform is only the aura, as for the soul and body, it will be improved a little at the moment of promotion and foundation building, which is better than nothing.

Build a foundation by yourself to build a three-layer foundation, the aura and body will be transformed, and the soul will also be improved a little when you are promoted to build the foundation, up to one-third.

According to the number of layers of the foundation, the effect of transformation, the foundation will be different, and the strength after promotion will also be different.

How much can the seven-story abutment be upgraded? The lord of the Xuanwu Kingdom did not announce it to the outside world, and everyone did not know.

Liu Shi and Ye Lao's minimum requirements for wood dust are to build a foundation on a seven-layer foundation, and a thirteen-layer wood dust for refining qi has this strength.

Once the foundation of Wood Dust is successful, then he will be able to bring the Feather Academy to a higher level.

Seven layers of abutments, one layer of one day.

The days were like a babbling stream, which kept going by, and fifteen days passed in the blink of an eye.

Outside the Spirit Gathering Array, Liu Shi and Ye Lao frowned.

It takes a day to build a five-layer foundation? According to common sense, it takes a day to build a foundation, and the most difficult thing to build a foundation is to achieve the foundation, which takes the most time, and Niu Er and others are the foundation platforms that Mu Chen painted directly for them, so it only takes three hours to absorb the aura.

Six-layer foundation building, no more than three days at most, and seven-layer foundation-building? It stands to reason that seven days is enough, but now the wood dust has taken fifteen days, and the high-level spirit stones in the Spirit Gathering Array have been replaced.

Isn't the wood dust a seven-story abutment?

Ye Lao and Liu Shi glanced at each other, and they both saw the shock in each other's eyes.

There is a ban array to isolate it, and the two of them can't perceive Mu Chen's current situation, if they want to forcibly investigate? It's not impossible? But it will affect the ban array.

In the Spirit Gathering Array, Mu Chen was still chanting mantras and absorbing spiritual energy.

In the next second, a smile appeared at the corner of Mu Chen's mouth, after fifteen days and nights of absorbing aura, Mu Chen's dantian was finally filled, looking at the purple gas lake in the past, the aura was pregnant with rhyme, it was not spectacular.

Nowadays, the aura in the Muchen dantian is comparable to the total amount of aura in the peak dantian of the foundation building period of the three-layer foundation platform.

The strength of the body has been increased by the aura of the desolate to the point where it is enough to wrestle with the wrist of the ninth-order demon beast of qi refining.

The soul was more than twice as powerful as before, and Mu Chen's sensitivity and the clarity of perceiving aura had been greatly improved.

The quantity of the soul increases, but the quality is still the pinnacle of foundation.

These changes are only an addition to the foundation building, and the real transformation of the foundation has not yet begun.

There are two steps in building a foundation: accumulating aura and building a foundation.

The first step of wood dust took fifteen days, and it was finally difficult to absorb a large amount of spiritual energy, and the next step was to build the foundation of the achievement.

Mu Chen recited the heart purification formula several times to calm himself down and calm down, and half an hour later, Mu Chen closed his eyes and began to chant the mantra for building the abutment.

In the next second, the hundred-foot purple qi lake in the wood dust dantian began to surge, gathering like a water dragon, and the liquid aura changed qualitatively again to a solid state.

The lilac aura converged into a lilac solid crystal the size of a fingernail, and the aura contained in this small piece of solid crystal was comparable to all the aura in the dantian of a classmate at the peak of the ninth layer of qi refining.

The aura continued to converge, and the range of the solid crystal became larger and larger, and after a while, one-third of the aura in the wood dust dantian converged into a towering pedestal.

The whole body of the foundation is purple, and the simple, desolate and noble atmosphere exuded from it is nine inches high, suspended in the dantian, exuding transparent roots that are deeply rooted in the dantian and rooted in the spiritual lake, absorbing the remaining spiritual energy in the dantian.

The bottom of the pedestal is up to three inches thick, and each place is engraved with the inscription of Heaven and Earth Zhongsheng, which makes people dazzled, and a small spiritual lake gathers in the center of the plane, and the purple concentration in it is deeper.

At the end of the plane, the four hideous pillars bend and spread, as if to support the heavens and the earth, and the four pillars are all engraved with the divine dragon, which is lifelike and vivid, exuding a neutral and peaceful wood atmosphere.

At the end of the pillar, the bottom is gathered again to form a pedestal, which is integrated without any splicing.

Condensed into a layer of foundation, Mu Chen felt that he was stronger, his body was tough, and his soul was stronger.

The two-story pedestal, the four-headed divine beast white tiger coiled on the pillar, roaring the mountains and forests, and the golden breath was sharp and rich.

The three-layer pedestal, the pillars are coiled into a four-headed divine beast, the Vermilion Bird, as if it is about to fly, and the breath of fire bursts out......

The foundation of the first three floors consumed all the aura in the wood dust dantian, and such a change was unexpected.

Originally, I thought that the aura in the dantian was enough to support the nine-story abutment, but now, ......

As if sensing the depletion of the dantian, the abutment platform emitted a strong suction, and with the help of the roots, skipping the mantra, it began to forcibly absorb the spiritual energy in the spirit gathering array, which was nearly a hundred times faster than before.

The spiritual energy in the Spirit Gathering Array dropped rapidly, and it was close to exhaustion in just one minute, and at the same time, the fourth layer of foundation was condensed in Mu Chen's body, and the Xuanwu was entrenched on the pillar, as thick as Mount Tai, exuding a rich earthy atmosphere.

Ye Lao and Liu Shi sensed that something was wrong, and quickly replaced the spirit stones in the Spirit Gathering Array.

Ten minutes later, the spirit stones in the spirit gathering array were exhausted again, and the wood dust took the opportunity to condense a five-layer foundation platform, and on the pillars was a majestic water qilin, transparent color, and the breath of water was vast.

Sensing that the aura was exhausted again, Ye Lao frowned, and with a little distress, he took out a spirit stone with a translucent color and almost perfect color, on which there was a trace of incomplete heavenly dao breath.

Liu Shi was taken aback and hurriedly dissuaded:

"Elder Ye, this top-grade spirit stone is the guarantee for you to break through the middle stage of the Yuan Infant. ”

"What is the middle stage of the Yuan Infant, I know my talent, although I don't know how many layers of the wood dust condenses the abutment, but such a terrifying aura consumption? I think it will not be lower than the seventh layer, such a good seedling?

Saying that, Ye Lao's face appeared and he resolutely put the best spirit stone into the spirit gathering array, and for a while, a richer aura rose from the spirit gathering array.

Six-storey abutment......

Seven-story abutment......

Eight-storey abutment......

A top-grade spirit stone actually helped the wood dust to condense to the eighth-layer foundation platform? Yes, it can become a guarantee for Ye Lao to break through the middle stage of the Yuan Infant? It is conceivable that the concentration of spiritual energy in it.

The pillars of these three-story pedestals are empty, and there are no divine beasts attached to them.

However, the road of wood dust condensation and building a foundation had not yet stagnated, and the spirit gathering array was exhausted again, and Ye Lao and Liu Shi took the spirit stones they had cultivated and put them into it.

"Ye Lao, not even a top-grade spirit stone, wood dust is gathering several layers to build a foundation?"

"Nine-storey, nine-storey abutment, definitely nine-storey abutment, I feel a hint of perfection. ”

Ye Lao was shocked for a second, and then laughed heartily, his eyes full of relief.

"Nine-story abutment? really?"

Liu Shi was shocked, and his mind boomed.

Nine-storey abutment...... Yes.

Gathered to form a nine-story abutment, the wood dust breathed a sigh of relief, it should have stopped.

However, the rhizomes emanating from the pedestal were still greedily absorbing the aura of heaven and earth, and Ye Lao continued to put high-grade spirit stones without changing his face, and said with a smile:

"This little baby's promotion to build the foundation has cost me one-third of my family fund, Master Liu, do you think he can afford to pay for it?"

"I can't afford it. ”

"Haha. ”

Just kidding the savings of the Yuanying boss? How can Mu Chen, a little monk in the foundation building period, compensate?

As the owner of the school, Ye Lao is willing to give everything, Liu Shi is also willing to give everything, and the students are the most important in their eyes.

"What? The abutment is still condensing? Didn't you say that it was the highest nine floors?"

Mu Chen was puzzled, and in the next second, a flash of inspiration suddenly appeared in his mind, and a guess appeared: Could it be that it was a foundation built according to the level of qi refining?

10-storey abutment......

Eleven-story abutment......

Twelve-storey abutment......

After condensing and completing the twelve-layer foundation building, Rao is the spiritual energy in the spirit gathering array is very full, and the dantian of wood dust is no longer absorbed.

Is this the limit?

Sudden mutations, the foundation of the twelve-story abutment all spread out of the roots, drilled out of the body of the wood dust and took root in the sky, rooted in the earth, and began to frantically absorb the aura between heaven and earth, absorbing the breath of all things in heaven and earth.

In an instant, the aura of the entire Taixing City was cleared and emptied, as if it had been swallowed by some terrifying existence.

With these heaven and earth aura, with a strong heavenly aura, the roots returned to Mu Chen's dantian, Mu Chen only felt that the dantian was about to explode, and the body was also painful, and at the same time, the thirteenth layer of the foundation was completed in an instant.

After condensing the thirteenth layer of the abutment, the feeling of swelling in the dantian and the body still did not stop, and Mu Chen quickly recited the mantra to refine these heaven and earth spiritual qi and transform it into a liquid spiritual lake.

Thirteen layers of abutments multiply the strength of wood dust.

However, from the sixth floor, there is no carving of divine beasts on the pillars of the pedestal, and it is empty.

The body has reached the level of a demon beast in the early stage of foundation building, and the soul is four times stronger than before, and now it is the size of a football, and the quality of the aura in the body is enough to be compared to the middle and even late stage of foundation building of the five-layer foundation building platform.

With the influx of massive spiritual energy, the range of the dantian in Mu Chen's body expanded again, reaching a radius of one hundred and fifty zhang.

When Mu Chen was cultivating, the outside world was in chaos.

The most seriously injured were the students who broke through the foundation building period? There was no aura bonus? The foundation building platform immediately crumbled and was about to collapse, but fortunately, the old man who guarded it reacted and placed new spirit stones in time, so that the foundation building platform for these studies was saved.

However, there are still some students who are not stable in building the foundation and collapse directly, so they can only take the foundation pill unwillingly.

There are no less than a dozen students affected by this.

Ye Lao's brows were tightly locked, and the aura disappeared strangely, even he couldn't detect where the aura finally disappeared.

Could it be the birth of a demon in the Yuan Infant Stage, or a breakthrough in the Demon Breakthrough of the Jindan Period?