A year has passed in a flash, and except for a few fluctuations in the soil attribute from a few peaks, the rest of the demon spirit island is very deserted.

Zhu Xiaofeng took advantage of this time to frantically learn all kinds of formation knowledge, while Qin Yushu and Lu Xiao were refining magic weapons together.

At the beginning, he had seized several magic weapons from the hands of the three monks of the Demon Spirit Gate, in addition to the golden flying sword that Lu Kun had taken, there was also a long knife and a jade ruler.

Qin Yushu and the others only need to split these two magic weapons, refine the original refining materials, and then combine them with some other materials, which can completely refine the magic weapons for Lu Xiao.

And in the Demon Ape Valley, the two demon beasts Xiao Jin and Xiao Gray were cultivating with all their might, and not far from them, there was a small silkworm lying very comfortably on a piece of soil, with its belly facing up, and many little feet facing the sky, sleeping comfortably.

For the little silkworms, rubbing the demonic energy they gathered is enough.

Suddenly, Xiao Jin, who was cultivating, opened his eyes and looked in the direction of the Eight Spirit Valley in the center of the Demon Spirit Island, his eyes flashed with a bit of excitement, he stopped cultivating, and the four yellow rays flashed, and they shot away in that direction at a rapid speed.

This action woke up the little silkworm, but after this guy saw the direction of the little monkey, he lost interest, dragged the increasingly bloated silver body, got a little closer to the little silver spotted leopard, and continued to sleep leisurely.

The Eight Spirit Valley Cave Mansion, which is closest to the Demon Ape Valley, is the place where the aura is the strongest, that is, where the Lu Kun Cave Mansion is located, Xiao Jin rushed and soon came to the entrance of the cave.

As if sensing Xiao Jin's arrival, the prohibition outside the cave was opened, and the little monkey flashed in.

In the cave, Lu Kun sat in it, his naked body was exposed, his skin became delicate and white at this time, and there was a slight blush on it, like a newborn baby.

The little monkey who had just come in was stunned and couldn't help but "squeak".

Lu Kun smiled and said: "It's nothing, it's just that most of the muscles and skin on the body have grown again, and the appearance just looks like this, and the strength of the body hasn't changed much." ”

"What has really changed is the bones, after the transformation of the Thunder Seal and the Spirit Control Array, the current bones can spontaneously absorb the spiritual energy into the body even if I don't take the initiative to run the exercises. ”

"Under the effect of the Spirit Control Array and the exercises, the cultivation speed will be faster, and from now on, the core of my entire physical body will gradually be biased towards the bones. ”

Lu Kun was full of emotion: "The purpose of my original creation of this realm was to quench my body into refining materials, and the entire quenching realm was slowly improved from the outside to the inside according to the Vajra technique. ”

"Today's physical body has finally reached the extreme of its current state. ”

"The next realm is to refine a part of the physical body into a magic weapon first, and under the nourishment of this magic weapon, the other parts of the physical body will be further improved. ”

"Xiao Jin, your talent is very powerful, and you can learn my breakthrough process, but this bone treasure period is a little different, and you need to make a lot of preparations in the early stage. ”

The little monkey was a little confused.

"If you want to control the spirit array, you shouldn't need to depict it, because you have a strong talent, and your control over demon qi and demon spirit power far exceeds that of other demon beasts. ”

Lu Kun showed a palpitating expression and said, "In this way, you can also avoid the most painful part." ”

He thought back to the circle depiction in the past year, and the rest of his body was fine, similar to his arms, but the spine was particularly troublesome.

The muscles near the spine are relatively fine, and in the back, Lu Kun is a little troublesome to cut, but this is okay, the headache is the calcination of the real fire in the back.

Although the internal organs are relatively close to the real fire, they are protected by a lightning shield, and their strength is not what it used to be, so there will be no damage.

And the most painful part of Lu Kun is the process of calcining the spine, you must know that there are many neurons on the spine, which govern the movements of the entire body.

The large number of neurons meant that he felt the most pain, and he also had to use his divine sense to sense the progress of calcination in several parts of the spine, and manipulate the blood marrow powder to form a magic circle on it.

It was also thanks to Lu Kun's physical body and strong willpower that he could barely resist the pain and successfully depicted the spirit control array on his spine.

Lu Kun thought for a while, and then said: "This mana mark, I don't know if your supernatural power can be simulated, demon beasts are not the same as human cultivators, some demon beasts have five element attributes, and the demon spirit power cultivated has attributes. ”

"Some are like you and Dahei, they are all pure demon spirit powers, and they have no superfluous attributes. ”

"So this mana mark, you have to think about it, with this mana mark, our bones will have their own attributes like magic weapon materials. ”

When the little monkey heard this, he showed a thoughtful look, when Lu Kun condensed the thunder seal in the past, it saw it in its eyes and knew the formation process of this mark.

With a flick of his hand, Lu Kun put away all the blood marrow powder in front of him, his eyes were mixed with a complicated look of excitement, excitement, and worry, and he said slowly: "Next, I plan to impact the realm of the Bone Treasure Period, you can observe it carefully, it can help your breakthrough." ”

Xiao Jin nodded and sat down in a corner of the cave.

Lu Kun returned to the center of the Spirit Gathering Array, closed his eyes, and began to attack the Bone Treasure Stage.

Ordinary immortal cultivators, from the foundation building to the Great Perfection to enter the Dan Formation Period, is to condense all the liquid mana into a golden pill, so as to complete the transformation of mana and enter a new level.

For physical cultivation, the purpose of the Bone Treasure Period is to refine the bones of the whole body into a magic weapon, and to refine the bones to a higher strength, the liquid mana is completely insufficient, and a higher level of mana refining is necessary.

From the Great Perfection of Quenching the Body to the Bone Treasure Period, it is to condense all the powerful mana of the physical body into the bones, forming a solid state and combining the bones.

In this way, the bones are the source of a higher level of mana, and under the tempering of such mana, it is possible to gradually reach the quality of the magic weapon.

Therefore, there is only one thing that Lu Kun has to do to break through, which is to condense the mana into a solid state and combine it with the bones, he has studied the ancient method of knotting the pill, and he knows the breakthrough of ordinary monks from Zhu Xiaofeng and them.

I also know the way to break through the demon clan, and many comprehensions combined with physical cultivation have already had a set of methods to break through the operation.

The first step before most immortal cultivators form a pill is mana crystallization, the liquid mana in the dantian is already full and there is no place to continue to store, if you continue to force the cultivation of mana, there is a certain chance that the mana will be crystallized.

At this time, there is the possibility of knotting, and many genius-like figures, such as Nie Wufeng at the beginning, have not yet retreated to impact the bottleneck, and the mana in the body has a tendency to crystallize, and such monks can basically break through smoothly.

The crystallization process of traditional immortal cultivators needs to last for more than two years, which is why it takes at least three years to form a pill.

These immortal cultivators are all accommodating mana in the dantian, and they are very careful about crystallization, for fear that the strong mana will cause damage to the dantian, and many monks fail to break through because the dantian is damaged in the crystallization process, in this way, there is almost no chance to form the pill for the second time.

Lu Kun's crystallization method is different from that of traditional monks, the place where he wants to accommodate the new mana is the bone, which is the hardest place in his body, and the crystallization mana will not cause damage to his current bones at all.

He only needed to do his best to desperately press the mana into the bones, so that a large amount of crystallized mana appeared in the bones, and this completed the first step.