The cool breeze was blowing, the clouds were rolling, a green feather bird fell on the ruins and looked around, a hanging green vine of the old tree next to it suddenly shook, the kingfisher was frightened, flapped its wings and rushed to the sky, followed the green vine with one hand in the soil, and slowly climbed up, this person is Song Xing.

It turned out that when the fire spirit bead exploded, Song Xing wanted to jump behind the old tree and use its huge tree body to avoid the aftermath, but he didn't expect that behind the old tree was not the earth, but a bottomless cliff.

Climbing up the cliff, Song Xing took a quick glance, there was no one around, it seemed that Zhou Tong and Du Jiang should have left, a little relieved, and then turned to look at the bottomless cliff, and the swarthy look made people palpitate for a while.

Song Xing didn't dare to stay longer, since he got rid of Zhou Tong and the others, he was ready to turn around and leave, this place was far away from the sect, and he often heard that there were big demons haunting.

"Huh!"

Song Xing suddenly stopped, throwing away some of the broken branches, and inside turned out to be a boxy dark gray shrine, which happened to be blocked by the branches, if it wasn't for the coincidence, it would be really difficult to find.

"It's really amazing, it must have been prayed to the heavens by the villagers who lived here before, but after a long time, it grew with the tree. Song Xing came closer and took a closer look, and in the world, he would worship some bodhisattva lands and the like, praying for peace.

It's just that this shrine grows inside the big tree flesh wall, the paint is peeling off, filling the whiskers, and it is impossible to see which god it is, so he picked up some of the broken branches and put them back on, and then Song Xing turned around and left.

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Back at his residence, Song Xing lay down on the bed, thinking about today's everything, it was extremely dangerous, especially the explosion of the fire spirit bead at the end made Song Xing even more afraid.

"This Zhou Tong is really bold, and he dares to use forbidden weapons at will. Song Xing almost scolded, but his uncle was the master of the refining weapon peak, even if he went to the sect, at most he would reprimand a few words.

Shaking his head and not thinking about these useless things, Song Xing turned over and pulled out a wooden box from under the bed, which contained blank rune paper and rune pens and other things.

These are the things that Song Xing usually makes spirit runes.

Song Xing has been in Ningchuan Lake for sixteen years, and he is still refining qi at the third level, because of the five elements of spiritual roots, he feels helpless, but the spiritual roots are fixed and cannot be changed, only by entering the inner gate, there is a 'spiritual washing pool' on the spiritual stone peak, which can slowly change people's physique and improve the speed of refining spiritual qi, and the inner disciples can soak for half a day a year.

Therefore, this is the reason why Song Xing worked hard to earn spirit stone cultivation, it was a long way to grow, and he didn't want to stop at the Qi Refining Realm.

Song Xing took out a blank rune paper and pressed it with a ballast ruler, thinking back to the 'Xuanbing Shield' that he had written down in the Spirit Rune Hall today, and he wanted to practice it.

Although Song Xing was a Five Elements Spirit Root, he only chose to cultivate the fire attribute among them, so as to ensure that the spiritual energy in his body was pure and it was easier to cultivate.

Most of the exercises of the outer disciples come from the 'Ningchuan Code' issued by the sect, which is written by many ancestors of Ningchuan Lake since the past dynasties, which records in detail the basic common sense and time changes of the cultivation realm of Hanhai Kingdom and the surrounding countries, as well as the five elements of the five elements below the fifth layer of qi refining, the exercises are divided into low-level, intermediate-level, and high-level, and there are supernatural powers above the legendary spells.

Of course, the Ningchuan Canon is all low-level exercises, which are only used by outer disciples to absorb and lay the foundation on weekdays, and only after becoming an inner disciple can they choose another exercise to cultivate.

Song Xing chose a fire-based exercise called 'Heavy Fire Decision', and when he chose it, he also took into account that his own spiritual root was not good, and the fire-based exercise was relatively easy to cultivate, and the power was not too bad, and when he cultivated to the fifth level of qi refining, he could also have a spell 'Fireball Technique', which was relatively suitable for him.

Suddenly, Song Xing's body stagnated, he almost fell, and the corners of his mouth overflowed with blood, and he felt that the aura of his whole body was instantly emptied.

"What's going on?" Shocked, Song Xing hurriedly stopped the operation of the aura and looked around his body, but there had never been such a situation before, there was no feeling on his body, there should be no abnormality, Song Xing frowned secretly, and ran the exercises again, and the feeling of the aura disappearing gradually spread throughout the body.

"Could it be today's ......" Song Xing recalled that he hadn't encountered anything strange in the recent period, and he was swept away by the fire spirit bead today, "Could it be that I hid under the stone cliff or was injured by the fire spirit bead, and the forbidden weapon is so powerful?" Song Xing thought about it, he hadn't seen anyone release the fire spirit bead before, and he didn't know what the power was, so he hurriedly sat down cross-legged, and performed the technique of internal vision, checking the operation of the dantian and meridians in the body, afraid that it was the secret wound left by the fire spirit bead.

The spiritual power is running normally, and the slightest spiritual aura light point runs to the dantian with the meridians, but the originally empty dantian has one more thing......

I saw that in the dantian, in addition to the almost invisible trace of natal aura, there was also an irregular gray cylinder of thumb size, more precisely, like a gray stone core.

"This color...... It seems to be the same color as the shrine inside the tree. Song Xing was surprised, could it not be the secret injury caused by the Fire Spirit Bead, it was something in the shrine?

However, in addition to this, Song Xing really couldn't think of any other reason, the Ningchuan Code was written by the ancestors, and many strange legends were recorded in it, but he had not heard of any monk's dantian that would have gray stone cores.

However, Song Xing is an immortal cultivator after all, and he has also read a lot of strange things in the Ningchuan Codex, but he is not too afraid, after thinking for a while and having no clue, although he is surprised, he began to touch his chin and think, what is this thing?

There is such a thing in the body, no matter how good or bad, you can't ignore it.

Thinking of this, Song Xing decided to observe first, Song Xing has always been cautious in doing things, although the observation is only focused on the side, a few wisps of natal aura are wandering in the dantian, this is the reason why Song Xing's realm is too low, if it is a foundation monk dantian, the aura inside is as rich as water.

The gray stone core stood in the middle of the dantian, like the pillar of optimus that would not fall down forever, and the natal aura floated around, as if the spiritual cloud was entangled, clinging to it, the stone core did not have any reaction, and Song Xing waited for a stick of incense for a while, and there was no change in the slightest.

Song Xing was puzzled, and after bowing his head and thinking for a long time, Song Xing gritted his teeth and decided to take a risk, it was really difficult to make such a decision with Song Xing's cautious character, but this stone core was in his body, which was related to his net worth and life, and Song Xing could not hesitate.

Song Xing was already smart, and after making a decision, he activated the aura of his whole body, like the white mist of mountains and forests, permeating the dantian, and like a stream rolling, forming a three-inch spirit snake, the spirit snake's body twisted, and cautiously approached the gray stone core.

Without any warning, the three-inch spirit snake did not react after drilling into the stone core, Song Xing's face was slightly pale, these were his natal aura, not much.

The aura disappeared, Song Xing was not discouraged, but aroused his unyielding temperament, after a little measurement, Song Xing's eyes flashed, this time he was ready to try with his divine sense,

At the beginning, I didn't use my divine sense, because my divine consciousness was different from my aura, and if my aura was gone, I could rely on cultivation to replenish it, and if my divine consciousness had an accident, it would become dementia at best, and at worst, my soul would be destroyed.

After the divine consciousness slowly entered the stone core, it was still like a stone sinking into the sea, the stone core was not moving like a mountain, there was no reaction, and after repeating it several times, Song Xing was finally ready to give up.

And at this moment, this gray stone core slowly rotated, extremely slowly, if it wasn't for Song Xing's constant attention, I was afraid that he wouldn't be able to feel it.

At the same time, Song Xing felt that the aura in his whole body accelerated, and even some of the aura that was free from the limbs of his body went straight to the gray stone core.

Song Xing didn't understand what was going on, and wanted to stop, but at this moment, the aura in his whole body seemed to be uncontrollable, and it continued to enter the stone core.

In just a moment, Song Xing's expression changed greatly, he felt that his realm had dropped, and the original peak cultivation of the third layer of qi refining had actually fallen to the third layer of qi refining, but it didn't seem to be over yet......

The pinnacle of the second layer of gas refining......

Gas refining second floor......

The first layer of gas refining......

Song Xing was finally a little panicked, this was the spiritual power he had cultivated for sixteen years.

The minutes ticked by......

The absorption finally stopped, not so much to stop, but rather to say that there was no aura in Song Xing's body to absorb.

The natal aura near the gray stone core is now gone.

"What the hell is this...... Looking at the empty dantian, Rao is Song Xing has a strong mind, and he is also dizzy at this time, if he has no aura, can he still be regarded as a monk, he is no different from ordinary people.

His body became weaker and weaker, and Song Xing felt that he had reached his twilight years, like an old tree that was about to decay.

Maybe he really listened to his call, and after a while, the aura in the gray stone core actually began to flow backwards.

In a moment, there were points of spiritual energy floating in the dantian, and Song Xing watched as the points of spiritual energy above the stone core converged into silk, which was obviously a lot smaller, but it was more rich and pure.

"Could it be that it has been purified?" Song Xing was overjoyed when the aura recovered, touching his chin, but his heart moved, could it be that this stone core had the effect of purifying the aura.

"Just give it a try. Song Xing took out a spirit stone and held it.

In Ningchuan Lake, the outer disciples only had two spirit stones per month, and the inner disciples were given five pieces, and most of Song Xing's spirit stones were obtained by him picking medicinal herbs.

The spirit stone was held in his hand, and a trace of warmth spread on his body, Song Xing did not dare to hesitate, and hurriedly looked inward, and the slightest trace of spiritual energy entered the dantian along the tendons.

This time, the aura directly entered the stone core, and Song Xing opened his eyes, full of shock.