Leaving the Library Pavilion, Yan Xu returned to his room, intending to seize the time to cultivate and strive to break through the eighth layer of qi refining within a few days. Only by being promoted to the eighth layer of qi refining can Yan Xu be sure to fight head-on with the Great Perfection of Qi refining.

After refining the skin of the Blood Crystal Hydra, Yan Xu did not relax his cultivation, but became more diligent and hardworking.

However, because the cultivation rose too fast, Yan Xu deliberately suppressed the cultivation to increase the speed, and waited until the mana in his body was more refined and his divine consciousness grew a few points, and then broke through to the eighth layer of qi refining, laying a solid foundation as much as possible.

In Yan Xu's opinion, refining the Blood Crystal Hydra to increase and cultivate is an external force, and only by thoroughly absorbing it can it truly become its own, otherwise, it will not be able to achieve speed.

"Now that the mana of the body has reached saturation, it is counterproductive to continue to suppress it, and tonight it will hit the eighth layer of qi refining in one go." Yan Xu took out several bottles of pills, as well as dozens of spirit stones, and prepared to impact the realm.

Yan Xu stretched out his palm, felt the concentration of aura around him, and frowned slightly: "When the breakthrough is successful, the effect of this level 1 spiritual spring eye is better than nothing for me." ”

The Eye of the Level 1 Spiritual Spring can increase the concentration of spiritual energy in a small area, and as Yan Xu's cultivation becomes higher and higher, the effect becomes relatively small.

"Once the Eye of the Spirit Spring is arranged, it cannot be moved, this room will be handed over to Zhao Yan and Fang Zhan for use in the future, and then it will be handed over to the outer disciples."

Although the Eye of the Level 1 Spirit Spring was not of much help to Yan Xu, it was quite good for Fang Zhan and other fourth- and fifth-level Qi refining cultivators.

Caidie and Deng Yu both practiced fire attribute exercises, and cultivated in the earth fire secret room, and the aura around them was much better than the eye of the first-level spiritual spring, so naturally they couldn't use it.

In the master exchange system, [Special Items] can be exchanged for Level 1 Spiritual Spring Eyes, each of which requires 50 points.

The effectiveness of the Level 1 Spiritual Spring Eye is very good for the disciples, but the fifty points exchanged for points still make it impossible for Yan Xu to exchange more, and this Level 1 Spirit Spring Eye is still included in the original system gift package.

In addition to the Eye of the Spirit Spring, there are also two sect buildings, the 'Spirit Eye Cave Mansion' and the 'Ten Thousand Medicine Pond', which can increase the cultivation speed of disciples.

The Spirit Eye Cave Mansion can only be built if the sect reaches level 1 spiritual energy concentration, as for how to increase the spiritual energy concentration of the sect, Yan Xu is at a loss, so he doesn't have to think about it for the time being.

In the end, there are only fifty points left in this 10,000 medicine pool, and it only takes fifty points to build, but before use, you must put in spirit grass, pills, or a large number of waste pills or medicine residues.

After putting in the raw materials, Wan Yao Tan can purify the essence of the spirit grass or the pill through a special formation, so as to wash the marrow and cut the tendons of the disciples soaked in the medicine pool and improve their qualifications.

The medicine residue or waste pill cannot be swallowed for the human body to absorb, but through the operation of the Ten Thousand Medicine Pond Formation, the essence of medicinal power can be extracted, so as to turn waste into treasure.

The higher the level of Wanyaotan, the better the effect of washing the marrow and removing the tendons, and the higher the efficiency of transforming the essence of medicinal power.

These medicinal essences were stored in the Ten Thousand Medicine Pool, and they would be absorbed when the disciples entered. With the continuous use of medicinal power, it is necessary to continuously put more medicinal residues into the Ten Thousand Medicine Pool.

Investing in the pill is obviously not something that Tianhao Sect can afford, as for the medicine residue, Tianhao Sect has no one to refine the pill, where is the medicine residue.

"Dregs! Huangyao Gu has been refining pills for many years, and there must be a large number of waste pills. Yan Xu's eyes suddenly lit up, Huang Yao Gu is now the alliance of the Tianhao Sect, and it is not impossible to exchange a large amount of medicinal residue from them at a low price to turn waste into treasure.

Thinking of this, if it weren't for the fact that the Flower Washing Sect was watching outside, as the head of the sect, he couldn't leave at will at this time, Yan Xu really wanted to rush to the Yellow Medicine Valley overnight and transport a large number of waste pills and medicine residues back.

"When we get through this crisis, we will first build this Ten Thousand Medicine Pool. Today, let's concentrate on impacting the eighth layer of Qi refining first! ”

Yan Xu clenched his fists, his eyes flashed, he didn't think much about it, spread his palms and lightly placed them on his knees, sat up straight, his eyes slightly closed, and whispered the mantra of the exercises, and soon entered the state of cultivation.

Although his eyes were closed, Yan Xu had already condensed his divine sense, and he could still clearly see his body and his surroundings. The divine consciousness spread out from the body, as if it was an invisible tentacle, allowing Yan Xu to clearly reflect everything he had detected in the sea of consciousness.

The surrounding situation is like a holographic image version, presented in Yan Xu's sea of knowledge without dead ends, this feeling is very strange and cannot be described in words.

Under the investigation of his divine sense, not only could the slightest flow of aura around him not escape Yan Xu's observation, but even every inch of bone, every drop of blood and even every cell in his body could be seen clearly.

With the operation of the exercises, the aura between heaven and earth continued to move closer to the top of Yan Xu's head, palms and other positions, and when he observed it with his divine sense, he could clearly see that one by one aura vortices were forming.

The aura vortex slowly rotated, stirring the aura and continuously inhaling into Yan Xu's body.

Some of these spiritual qi are absorbed by the flesh and blood cells to nourish and strengthen the body, and more of them are fused into the meridian mana and sent to the dantian along the operation of the exercises.

Every time a trace of spiritual energy is absorbed into the body, the mana in the dantian and meridians will increase by one point.

Under the gaze of Yan Xu's divine sense, the original pale white mana appeared to be even thicker in color, especially the mana at the dantian was rich and almost milky.

The mana flowed in the body, and as the exercises were added, the meridians of the limbs were washed like a turbulent river, and there was a faint sound of waves.

The aura vortex formed by the top of the head, the palms of the hands, and even the soles of the feet, and the aura vortex formed by several large acupoints around the body, suddenly increased in speed, greedily pulling the aura of heaven and earth into Yan Xu's body.

Yan Xu still had his eyes closed, his hands were turning quickly, pouring out a few grains of the 'Qingyuan Dan' that had been prepared in advance and swallowing them into his abdomen, and then grabbed a few spirit stones and held them in the palm of his hand to absorb them frantically.

Tianhao Sect's spiritual energy is thin, even if it is blessed with the eye of the first-level spiritual spring, it is still far from meeting Yan Xu's physical needs, and with the assistance of this elixir and spirit stone, he can keep up with the speed of body absorption.

Qing Yuan Dan swallowed into his abdomen, Yan Xu first felt a burst of coolness, and then a stream of pure medicinal power dissolved, flowing into his body continuously.

These medicinal powers turned into rich mana, which was immediately devoured by the dantian, and soon became part of Yan Xu's mana.

At the same time, Yan Xu held several lower-grade spirit stones in his left and right hands at the same time, and two huge mana forces entered his body along the meridians of his arms, and finally entered the dantian.

As the aura was absorbed, the brilliance of these spirit stones first became dim on the surface, and then the aura contained inside was also sucked away, and then the spirit stones appeared one after another cracks, until finally the aura was completely absorbed and scattered into a pile of white ash.

Several strands of spiritual power formed by the elixir and spirit stone were all absorbed by Yan Xu, and the mana in his body reached an unprecedentedly rich state, and circulated at high speed along the exercise route.

Between Yan Xu's exhalation and inhalation, the surrounding aura was also accelerated into his body, and with his exhalation, he turned the impurities in his body into turbidity and spit it out.

After more than an hour passed, Yan Xu's body was extremely full of mana, and the skin of his whole body was glowing with a faint red light, and he unconsciously used the strange blood vein magic power 'Blood Crystal Body'.

The mana continued to circulate and rush in Yan Xu's body, and the viscous mana was like a mighty river washing over his body.

The skin glows slightly red, followed by a hint of red streaks.

The red lines climbed up Yan Xu's chest, arms, and back, and finally spread to the edge of his face, but Yan Xu was unmoved, still concentrating on absorbing mana and running exercises.

These spreading lines form a strange pattern, which resembles the texture of snake scales and the pattern of ancient stones, which are all over the body.

These patterns formed by the pale red lines on the surface of the body are like miniature magic circles, infusing the spilled mana into the flesh and strengthening the body again.

Click!

The several lower-grade spirit stones held in both hands completely turned into a pile of flying ashes. Yan Xu's face remained unchanged, and he grabbed seven or eight spirit stones beside him, and continued to absorb spiritual power without the slightest pause, and the momentum of his whole body rose again.