After another quarter of an hour, the liquid melted by dozens of rare ores shrank by more than half, only one-third the size of the original, and at the same time, its purity also reached a limit, making the corners of Yang Feng's mouth show a faint smile, the mana in his body ran rapidly, and his fingers moved slightly, putting the liquid gathered together into the twelve jade boxes on average, making a faint metal film inside the twelve jade boxes.

After refining dozens of rare ores, Yang Feng did not stop at all, and with a wave of his hand, dozens of trunks of various rare plants flew out of the cave world and were quietly suspended in front of him.

Immediately after, the mana in Yang Feng's body surged, and a scorching flame shot out from his fingers, turning into flames, wrapping dozens of plant trunks and burning them to the fullest.

It is also strange to say that the scorching flame wrapped the trunks of dozens of rare plants, and instead of igniting the trunks of dozens of plants, it melted the trunks of dozens of plants into liquids like refining ore, and under the scorching flames, slowly removed the impurities in them, becoming more and more pure and flawless.

Half an hour later, the trunks of dozens of plants, under the burning of the flames, turned into a ball of pure and flawless liquid, which was sent into twelve jade boxes by Yang Feng using mana on average.

After refining the backbone of dozens of plants, Yang Feng did not hesitate or hesitate at all, and all the other six auxiliary materials were refined into liquids, which were respectively put into the jade box, and under the harmony of the special formation, they slowly fused into a whole.

After refining eight kinds of materials in a row, Yang Feng's spirit was a little tired, and most of the mana in his body was consumed, and he didn't have the spirit and mana to continue refining the Xuantian Flying Sword at all, so he let the eight auxiliary materials, under the effect of the special formation, continue to fuse.

After that, Yang Feng took out a bottle of pills that replenished mana from the cave world and took it, and ran the internal exercises to refine the medicinal power of the pills in his body, so that he could recover his mana as soon as possible.

A few hours later, with the assistance of the elixir, Yang Feng's spirit and mana returned to their peak state, and he took out the branches of the Xuantian vine from the cave world, urged the mana in his body, generated true fire, and refined the branches of the Xuantian vine, only to become a puddle of liquid annoying with silver light, which was evenly injected into the twelve jade boxes by Yang Feng.

Immediately afterwards, Yang Feng operated the mana in his body in accordance with the requirements of the Xuantian Flying Sword refining method, and his hands danced rapidly, depicting a formation that he himself could not understand on top of the liquid that began to solidify in the twelve jade boxes.

The liquid in the twelve jade boxes solidified quickly, and the movements of Yang Feng's hands were also very fast, one by one with special effects, under the dance of Yang Feng's hands, lightning carved on the liquid in the twelve jade boxes.

In just a quarter of an hour's effort, the liquid in the twelve jade boxes was completely solidified, and Yang Feng also successfully carved thousands of formations on the liquid in the twelve jade boxes.

Looking at the twelve silver Xuantian Flying Swords in the jade box, a faint smile appeared on the corner of Yang Feng's mouth, he reached out to wipe the sweat on his forehead, and then sat cross-legged and breathed, quietly waiting for the moment when the twelve Xuantian Flying Swords were completely refined.

After a day and a night, the special formations under the twelve jade boxes emitted a crisp explosion sound, exhausting their energy and turning into a piece of flying ash, while the twelve Xuantian flying swords in the twelve jade boxes let out a crisp sword roar, which made Yang Feng feel happy in his heart, and he couldn't help but let out an excited cheer.

Looking at the twelve silver Xuantian flying swords among the twelve jade boxes, Yang Feng waved his big hand with excitement, and the mana in his body surged out rapidly, holding up the twelve jade boxes and slowly flying in front of him.

Casually taking out a Xuantian Flying Sword from a jade box, Yang Feng played with it carefully, and the smile on his face became stronger and stronger.

In a matter of moments, Yang Feng played with all the twelve Xuantian Flying Swords, and then bit his fingers, dripped drops of essence blood on each Xuantian Flying Sword, and ran the exercises, and began to refine the twelve Xuantian Flying Swords.

The twelve Xuantian Flying Swords were refined by Yang Feng, plus Yang Feng dripped his own essence and blood on the twelve Xuantian Flying Swords, and at the same time, the refining method was also the top alchemy method recorded in the Xuantian Sword Technique, so in just one hour, Yang Feng successfully refined the twelve Xuantian Flying Swords and put them into the dantian to warm up.

After successfully refining the Xuantian Flying Sword, Yang Feng's task of entering the catacombs is also considered to be completed, and he should also leave the catacombs, return to Tianxing City, and return to the Xuanhuang Great World.

However, before that, Yang Feng was going to cultivate the Xuantian Sword Formation in this temporary cave mansion first, so as not to encounter any powerful demonic beasts on the way, and he would not have enough strength to resist and become the food of the demonic beasts.

Three days later, Yang Feng had thoroughly studied the Xuantian Sword Formation, then stood up, was afraid to pat the dust on his body, and walked towards the entrance of the cave.

"Let's go!"

Walking to the entrance of the cave, he glanced at the silver-armored puppet quietly guarding the side, Yang Feng said lightly.

In a matter of moments, Yang Feng left the hill and rode on the body of the silver-armored puppet to an empty plain.

Getting down from the body of the silver armor puppet and letting the silver armor puppet guard the side to prevent a demonic beast from attacking him, Yang Feng's divine sense moved, and a silver shining Xuantian flying sword flew out of its dantian, quietly levitating in front of it.

Glancing at the Xuantian Flying Sword suspended in front of him, Yang Feng did not hesitate at all, and immediately jumped on the Xuantian Flying Sword, agitated the mana in his body, performed the sword technique, and flew into the distance.

Yang Feng, who stepped on the Xuantian Flying Sword, did not fly from other roads, but galloped towards the direction of the teleportation array along the sky above the road from which he came.

I don't know if it's Yang Feng's luck, or if his flight altitude is a bit high, he didn't encounter a single demonic beast, and in just over an hour, he crossed a distance of thousands of miles and successfully arrived at the location where the teleportation array was located.

Without the slightest hesitation, carrying a Xuantian Flying Sword on his back, he stepped into the teleportation array, and with a flash of white light, Yang Feng disappeared into the ninth layer of the catacombs and entered the eighth layer of the catacombs.

The eighth layer of the catacombs was full of strange mazes, Yang Feng had just walked out of the teleportation array, he was wrapped in the maze, and one after another illusions appeared in Yang Feng's field of vision, wanting to confuse Yang Feng's mind and trap Yang Feng alive.

Yang Feng, who had already broken through the maze once, how could he easily be enchanted by the maze again, casting the secret technique of the Nine Turns Forging Soul Technique, Yang Feng successfully broke through the illusion array, crossed the distance of a thousand meters, and stepped into the teleportation array leading to the seventh layer of the catacombs, and disappeared into the eighth layer of the catacombs with a flash of white light.

Immediately afterwards, Yang Feng quickly left the seventh layer of the catacombs and came to the sixth layer of the catacombs.

When Yang Feng appeared on the sixth floor of the catacombs and rushed to the teleportation array leading to the fifth layer of the catacombs, he found that hundreds of adventurers had gathered near the teleportation array, erected signs recruiting people to form a team, and involuntarily walked to the side of an adventurer and asked, "Brother, why are there so many people recruiting people to form a team here?" ”

Hearing Yang Feng's words, the adventurer glanced at Yang Feng casually, and then said lightly: "Don't you know that a general's tomb has been found on the sixth floor?" Of course, these recruiters want to go to the General's Tomb to make a fortune! ”

Hearing the adventurer's words, Yang Feng's heart moved, and he asked with a calm face: "Brother, it's been almost a month since this general's tomb was discovered!" How can anyone still go on an expedition, is there any treasure in it? ”

Hearing Yang Feng's words, the adventurer laughed, reached out and patted Yang Feng's shoulder and said, "It's very simple!" Although the top treasures in the General's Tomb are gone, the scope of the General's Tomb is very large, there are many zombie kings, Skeleton Kings, Flame Knights, bone dragons and other undead creatures, and each undead creature has one or several sophisticated weapons, so the General's Tomb is still very attractive to us adventurers at the level of Xuanshi!

As long as you hunt a few undead creatures, you can't get a lot of bone materials, and you can also get a few good and sophisticated weapons, which is a great opportunity to make a small fortune! How about it, brother, are you interested in teaming up together to hunt undead creatures and make a small fortune. ”

Hearing the adventurer's words, Yang Feng politely refused with a smile on his face, and then went around the bend and asked what happened in the general's tomb after he left.

Half an hour later, Yang Feng learned from the mouth of the adventurer what had happened in the general's tomb after he left.

Zhao Jun, Zhou Xun, Feng Fei, Wu Ming and other god-level powerhouses and powerful people and teams such as the Sky Hunter Clan, the Wind Clan, and thousands of powerful adventurers, were attacked by the organs in the General's Tomb, and suffered heavy casualties.

Only a few powerful mysteries, a strong team of adventurers, and lucky cultivators have obtained the treasures in the General's Tomb, and the others have only obtained a large number of undead creature bones, sophisticated weapons, and various elixirs.

After obtaining the information he needed, Yang Feng did not hesitate at all, stepped into the teleportation array, and disappeared into the sixth layer of the catacomb.

Immediately afterwards, Yang Feng continued to teleport, walked out of the catacombs directly, took the battleship near the catacombs, returned to Tianxing City, and quietly infiltrated the location of the spatial teleportation array, and returned to the Xuanhuang Great World.