After Long Feng took away the yuan stone of the cave, the entire cave became very dim in an instant, and the water dragon that continued to gush down on the cave continued to be injected, and soon the water in the cave began to rise slowly, and finally covered the cave.

Long Feng swam into the largest crack above under the Yuan Stone that emitted a faint glow on the surrounding crack wall, and continued to swim out of the cave along the crack that had opened in the cave.

As it continued to rise, the cracks gradually narrowed, and in the end, even the body could not pass through, so it could only continue to attack the narrow cracks while climbing up against the turbid stone water.

Although Long Feng was able to collapse and crack the crack for a distance with each attack, he was also tired and half dead, but fortunately, there was still the crack that cracked to attack, and it could be easier, otherwise it would be even harder.

"Boom!"

With a loud noise in the middle of the air, Long Feng stepped lightly and leaped up, the feeling of stepping on the ground on his feet, indescribable beauty seconds, and that foot was the channel where he attacked along the crack.

After Long Feng exited the passage, he looked around and found that this was a passage formed by an underground crack.

Huh, how do you feel so familiar here, hmm! Long Feng's eyes widened, wasn't this the cave crack where he had been sucked into the crack before?

No wonder he made himself feel familiar, looked around and identified the direction, and left along the long crack, and after a while, he came out of the crack passage, and behind him was the crack he had entered before, and the crack that was hundreds of zhang high and dozens of zhang wide was erected in the rock wall.

In front of Long Feng is there some underwater plants growing, forming an underwater forest, and the ground of the cave is covered with a thick layer of Yuan Stone, Long Feng will naturally not let it go, including the Yuan Stone of the previous crack has all been put away.

Long Feng quickly swam into the cave above, but the water in the cave had disappeared, and Long Feng sucked the air from the cave fiercely, and finally could breathe well, no longer having to endure holding his breath.

Because the water of the cave has entered the bottom, and the water of the cave is lost, there are some wet plants everywhere, either hanging on the stone milk or falling to the ground, Long Feng went directly to the cave that came down, came to the cave under the pool, and stood under the passage that came down before.

Long Feng looked up at the passage that came down, thinking about how to go up, because the passage above was dozens of zhang high from the ground of the cave below, to say the least, because there was pond water before, it was okay to swim up, but now he didn't know how to go up, Long Feng couldn't fly, even if it was simply flying with the Yuan Bing Imperial Weapon.

Because Long Feng has not yet reached the Yuan Realm, only by breaking through to the Yuan Realm can he simply fly with a royal weapon.

Even if Long Feng can fly with a weapon, he can't do it now, because there are no Yuan soldiers!

"But he didn't give up, and he decided to refine his natal divine weapon!"

Long Feng originally wanted to return to the village and refine his natal divine weapon again, but he saw a black light flash in his hand, and a black long knife appeared in his hand, black as ink, without a trace of luster, it was the long knife that the barbarian had given to Long Feng before.

Long Feng is to refine this long knife into his own natal divine weapon, in the information passed down by the desolate honor, there is a method of leaving the natal divine soldier, the most important of which is to arrange a formation, which is a formation called the sacrificial spirit array.

Because the sacrificial refining of the divine soldier needs the Yuan Huo, and the Yuan Fire is only in the realm of the Yuan Dan Realm, only when the Yuan Dan Realm is formed, the Yuan Fire will be formed, in the era of the Wild Zun, if the general Wild Cultivation Body has not yet reached the Yuan Dan Realm to form the Yuan Fire, it is generally necessary for the elders to help with the sacrifice or ask someone to help refining.

Of course, other fires can also be used, but because it is an external fire, it is not only not stable enough, but also not under its own control, so it is easy to have unexpected problems, resulting in refining failure.

Because there is both a formation and a yuan fire, in the end, someone created a formation, using the yuan stone to produce a special yuan fire, and it is also very stable, as long as there are enough yuan stones, low-level people can sacrifice by themselves.

"In the Heavenly Desolate Continent, the Yuan Weapon (weapon) can be divided into: mortal soldiers, Yuan soldiers, spiritual soldiers, earth soldiers, heavenly soldiers, divine soldiers, holy soldiers, supreme divine soldiers, and the legendary heaven and earth Xuan soldiers. ”

But there is also a special kind of elemental weapon, that is, the natal divine weapon or blood refining divine weapon, which is refined and continuously nurtured by the master's essence and soul power, which can be used more powerful than ordinary weapons, can be easily operated, can be 100% played, and with the improvement of cultivation, the natal divine weapon will continue to improve.

But there will also be certain restrictions, if the weapon is damaged, it will also be injured, and only the master of the blood refining can use it completely, if it is seized by others, it is generally unusable, and even if it can be used, it is like an ordinary weapon, not as powerful as the master of the blood refining.

Long Feng took out a lot of Yuan Shi in the space ring, yes, it is Yuan Shi, because the arrangement of the formation is to need Yuan Shi, the more advanced the Yuan Shi, the better, the best Yuan Shi.

Because the more advanced the Yuan Stone, the purer the Yuan Qi inside, and the Yuan Fire produced is naturally better, and the Yuan Stone that Long Feng took out are the brightest, which is obviously better, and I saw that the Yuan Stone on the ground was all crystal clear and radiant.

There are two situations in the sacrificial spirit array, if it is a top-grade spirit stone, one hundred and eight is enough, and if it is a low-level yuan stone, it generally needs one thousand and eight hundred, because there is no pure top-grade yuan stone, only the number is used to replace it.

And what Long Feng wanted to arrange was a formation of 1,800 pieces, because he didn't know what level of the Yuan Stone was here, so he had to use the Yuan Stone as much as possible, in order to refine the Divine Soldier as perfectly as possible.

According to the instructions left by Huang Zun, Long Feng began to arrange on the ground seriously, because if there is a little mistake, the formation cannot be formed, so he calculates the distance while arranging, Long Feng does not know what the formation is, so he can only arrange it step by step.

Slowly on the ground, an octagonal formation formed by a yuan stone several zhang large, which looked very weird, Long Feng didn't know if it had succeeded, put the last yuan stone, staring nervously, one second or two seconds... , no response after a minute.

Long Feng knew that he had failed, because when the formation was successfully arranged, the formation would be operational, and with the operation of the formation, the vitality in the Yuan Stone would be withdrawn to form a powerful formation.

"Hey!"

Long Feng exhaled, I knew that it was not so easy, although I had prepared in my heart, but I was still a little disappointed, Long Feng put away his emotions, cheered up and began to arrange again.

After failing again and again, failing again and again, and then starting again, gradually Long Feng's heart slowly calmed down, and he no longer held a strong purpose, but let go of a strong purpose, immersed himself in the formation, and constantly improved the arrangement of the spirit sacrifice array little by little.

"Weng!"

After failing to know how many times it failed, after the last Yuan Stone was put down again, the formation on the ground made a buzzing sound, and the formation on the ground suddenly emitted a dazzling light.

Long Feng was shocked when he saw it, his eyes lit up instantly, and he finally lived up to his efforts and succeeded.

After the formation on the ground emitted a dazzling light, Long Feng knew that the Spirit Sacrifice Array had been successful, and he was extremely excited, the first step had been successful, and the next step was to form the Yuan Huo, and then he could start preparing for the Sacrifice Refining Long Knife.

After the successful arrangement of the formation, I saw that the Yuan Shi in the formation was driven by the formation, and emitted a pillar of light, shooting out towards the center of the formation, and a huge amount of Yuan Qi began to accumulate in the middle.

And finally, "Poof!"

A small flame was formed in the middle of the formation, swaying from side to side, as if it was going to be extinguished at any time, but under the continuous supply of vitality from the light pillar of the formation, the small flame slowly stabilized, and the slowly flame began to grow larger, and the color slowly deepened, turning from a pale white flame to a snow-white flame.

In the end, the flame was completely formed, burning violently in the middle of the formation, the blazing temperature continued to come from the flame, emitting a scorching light, the surrounding temperature rose rapidly, and the water of the entire originally wet cave was constantly evaporated.

Long Feng saw that the sacrificial spirit array had formed a yuan fire and had stabilized, and began to calm down his excitement, walked to the side of the formation to control the formation, constantly increasing the transmission of the formation vitality, and constantly compressing the yuan fire in the center of the condensation, so that its flame could reach the extreme.

Long Feng is not afraid of the consumption of Yuan Stone, there are thousands of them on the ground, which is enough to refine the consumption of the Natal Divine Weapon, because the higher the flame temperature, the better the weapon for the sacrifice.

In the end, a trace of red appeared in the flames, no matter how compressed it was, there was no change, and Long Feng saw that he could no longer suppress and improve, so he gave up continuing to compress and condense the flames.

Long Feng took out the black long knife and threw it into the flames of the formation, under the control of the formation, the small flame instantly covered the black long knife and began to burn continuously.

Time passed minute by minute, Long Feng's forehead was already a dense sweat, and beads of sweat the size of beans fell from time to time, but Long Feng didn't care about it, staring at the black long knife in the flames with blazing eyes, and the long knife turned from time to time under the control of the formation.

Under the continuous burning of the flames, the black long knife had begun to slowly turn red from the previous jet black, and a trace of joy flashed in Long Feng's eyes, and after an hour, the long knife finally began to change.

This hour is a torment for Long Feng, not only to control the formation flames, but also to control the long knife is obviously a big challenge for Long Feng, but fortunately, there have been changes,

Long Feng's face began to become solemn, and his eyes were staring inseparably, because the next thing was the key.