At this time, in the Demon Spirit Island, except for the two of them, only Lu Xiao and Yu Xuan were practicing in retreat, and after Zhu Xiaofeng arranged the Transformation Spirit Sect City a few years ago, he continued to look for suitable disciples of the Treasure Weapon Pavilion outside.

Xiao Hongfei went overseas to hunt demon beasts, he was more depressed, after he and Lu Kun exchanged prohibitions to join the Treasure Pavilion, he wanted to join forces with Lu Kun to join forces to kill demon beasts overseas, quickly obtain demon pills, and refine a large number of refined pills.

Who knew that after solving the demon cave, Lu Kun was injured and had to go to Qi to find a solution, and in the end Xiao Hongfei had to go overseas alone.

When Lu Kun came back this time, only Qin Yushu knew, and the others didn't know that he was coming back to break through the realm.

......

After Qin Yushu and Lu Kun finished discussing in the cave mansion, they took action, Qin Yushu took out a large amount of blood condensation grass, Lu Kun took out a lot of jade bottles containing essence blood, and the two of them respectively controlled the mana true fire in their bodies and began to refine blood marrow powder.

Different from the refining of normal magic weapons, this time it was Lu Kun's bones that were refined.

If other materials for the depiction of the magic circle were refined into his body, problems would inevitably arise, so it was necessary to have blood marrow powder, a material refined by Lu Kun's own refined blood.

Whether it is the basic magic circle of the magic weapon or the depiction of the solid magic circle, the blood marrow powder will be used, and there are two hundred and six magic weapons, and the number required is extremely large.

Fortunately, last time, Lu Kun and the others found a large amount of blood coagulation grass in the storage bag of the disciples of the Red Refining Sect in the last cave of the Demon Cave, which was enough to refine blood marrow powder.

It's a pity that the growth environment of this herb is relatively harsh, and the people of the Treasure Pavilion are still studying how to grow this herb.

After all, after the ordinary body cultivation reaches the Great Perfection of Quenching the Body, if you want to increase the probability of some breakthroughs, you have to carve the spirit control array on the bones, and naturally you will use blood marrow powder, and there is a large demand for blood coagulation grass.

The refining of blood marrow powder was very simple, with the current realm of Lu Kun and Qin Yushu, it took a whole day to refine nearly a hundred bottles, and the stored blood condensation grass was consumed.

If it weren't for Lu Kun's ability to store some essence blood from time to time after solving the hidden danger ten years ago, they wouldn't have been able to refine so much blood condensation grass in a short period of time.

Compared with the first entry into the Bone Treasure Period, Lu Kun's essence blood has changed dramatically, and the concentration has increased several times, not to mention, after being impregnated by the true demon's intent, some inexplicable changes have also occurred.

However, when the blood marrow powder was successfully refined, the vision of the ape roaring still appeared, and Lu Kun was relieved, which showed that the essence of his blood had not changed.

"Senior brother, the blood marrow powder is almost ready, and the next step is to refine two hundred and six bones in turn. Lu Kun looked at the pile of jade bottles containing blood pith powder in front of him, and his voice trembled a little.

"By the way, the junior brother has carved twenty-five soul control arrays, although these magic circles can affect the bones of the whole body, but now that the bones are disassembled and refined, do you need to re-carve and depict two hundred and six soul control circles?"

Lu Kun shook his head and said: "The function of the Spirit Control Array is to help the bones better control the aura, and it only needs to radiate the whole body, and there is no need to re-depict it for the time being." ”

He paused for a moment and sighed, "And even if I want to portray, the current blood marrow powder is a little insufficient." ”

Qin Yushu looked at the refined blood pith powder, thought about the number of two hundred and six again, and sighed.

Lu Kun said again: "Senior brother, because the material is my flesh, there is no need to depict the bloodline magic array, the skeleton is equivalent to an inlaid magic weapon like the senior brother's five feather Qiankun knife, but it is not a complete set of magic weapons, and it does not need to be formed at the same time." ”

Qin Yushu thought about it for a while, and then understood: "That's right, the junior brother is his own body, and the mana is in the bones, it can be said that the magic weapon has been congenitally recognized by the master, and more than two hundred magic weapons are all of the same origin, and they are interrelated in themselves, so there should be no problem in refining them one by one." ”

He continued, "Since you plan to only depict the solid magic circle, then the refining of each bone will be relatively easy, and you only need the basic magic circle and the solid magic circle of the magic weapon. ”

Then Lu Kun took a deep breath and said, "Then let's start from the outside to the inside, first with our hands and feet, then with our arms and legs, and finally refine the bones and skulls of the torso." ”

"The hands and feet are quite difficult, we refine them first, the limbs and bones are relatively simple, and it is our fatigue period at that time, and as for the final trunk bones and skull, the difficulty is the highest. ”

"However, according to my speculation, as the magic weapon of the limbs is formed, the mana in my body will gradually increase, and with the support of stronger mana, the difficulty of refining the torso will be reduced. ”

"Okay, just listen to the arrangement of the junior brother. ”

Next, the two spent a day and a night adjusting their mana to the highest state and began refining.

They sat opposite each other, Lu Kun raised his right hand, and a purple flame appeared on it, calcining his palm.

Although he was burning himself, Lu Kun's face did not change, and he said calmly: "Senior brother, in a single palm, there are a total of twenty-seven bones, which are eight carpal bones, five metacarpal bones, and fourteen phalanges. ”

"These bones are extremely fine, and the difficulty of refining is not low, and Senior Brother also uses mana true fire, so we first calcine and soften the palm bones. ”

Qin Yushu couldn't help but swallow a mouthful of spit, and Lu Kun calmly discussed calcining his palm with him, which always looked a little weird.

"Sting!"

A cyan flame soon appeared under Lu Kun's right palm, echoing with the purple mana true fire, calcining together.

The muscle defense on Lu Kun's palm was not weak, but it was still much worse than the bones, and it was soon scorched by the two true fires of the Dan Formation Period, and gradually turned into ashes, revealing the purple palm bones that were shining inside.

"Senior brother, from the outside to the inside, the first fourteen phalanges. ”

The cyan and purple flames, with a shake, more than doubled, fell under the five fingers, and at this moment, sweat immediately appeared on Lu Kun's face, and his facial muscles began to twitch.

Ten fingers are connected to the heart, and the nerves on the finger bones are very sensitive, and Lu Kun's physical cultivation has practiced this nerve induction to the extreme, and the pain he endured is naturally countless times greater than that of ordinary people.

As the mana true fire burned for several hours, the finger bones gradually softened.

"Senior brother, the time is almost up, these fourteen finger bones will be carved together, and the divine consciousness of the divine consciousness will be activated to unite the divine power. Lu Kun endured the pain of burning his five fingers, and his divine sense transmitted.

"Good!"

Then the two mid-stage divine consciousnesses of the knot pill rose to the sky, circling and merging with each other, and the aura of the power of the divine consciousness kept rising, until it increased until it reached the level of the great perfection of the knot pill before stopping.

After the spell was successfully cast, Qin Yushu's face turned pale, and after the two divine senses were united, he could faintly feel the pain that Lu Kun was suffering, and just sensing a little bit made him feel unbearable.

The two of them were united, and the thoughts between each other only intertwined for a moment, Qin Yushu's heart sank, and he immediately retracted his mind.

A vial of blood marrow powder slowly floated, spilling a dark red powder.

The divine consciousness of the two of them was wrapped in this pile of powder, and they sank into the fourteen phalanges of Lu Kun's right hand, and began to carve the basic magic circle of the magic weapon.