It was dark, Lu Chen finished his work, washed up, put away the identity stone tablet from the jack, and then stepped out of the cave. After a night of cultivation, Lu Chen not only did not feel the slightest tiredness, but his thoughts were clear and full of energy. Standing in a clearing in front of the cave, Lu Chen stretched his hands and feet and moved his muscles. Just then, there was a sound of footsteps in the distance. When Lu Chen looked back, he saw Jiang Feiyun and the others walking towards his cave.

Lu Chen smiled heartily and greeted Jiang Feiyun and the others from afar. Lu Chen knew that Ning Yu, Wu Tao, and Qiu Feng did not reject him from joining. At that time, when the elder surnamed Fan arranged for him to join Jiang Feiyun's mining team, Qiu Feng and Ning Yu even spoke for him in front of Jiang Feiyun.

Ning Yu and the three responded in unison. Jiang Feiyun said lightly: "Follow us to the mine." ”

Lu Chen nodded yes, and then integrated into the team. Since he joined the Mine Hall, Lu Chen naturally would not evade the mining of spirit mines. Moreover, Lu Chen was also very curious about how to mine the spirit mine. When he got closer, Lu Chen found that the thin autumn wind was carrying a heavy package, but Lu Chen didn't ask much.

Dongfu Peak was not far from the spirit stone pit, and soon everyone came to the edge of the pit. This time, there was no need for first aid, and Lu Chen followed everyone along the stone path of the pit ladder to the bottom of the pit. From a distance, there was no smoke at the bottom of the pit, Jiang Feiyun was right, and the smoke in the mine had dissipated overnight.

After everyone came to the bottom of the pit, Jiang Feiyun was the first to step into the mine, followed by Ning Yu and Wu Tao. Qiu Feng left behind with a package on his back, and at this time motioned for Lu Chen to enter the mine first, Lu Chen did not shirk and stepped into the mine.

The Spirit Stone Mine Cave is more than one person tall and two people wide, slowly extending deep underground. Lu Chen thought that the inside of the mine would be pitch black, and he couldn't see his five fingers. However, as he went deeper into the mine, Lu Chen found that the situation in the mine was a little different from what he had imagined.

Looking ahead, I saw that the stone walls around the mine were irregularly inlaid with strange crystals that emitted a light blue light. Lu Chen walked in the mine, and he actually gave birth to a feeling of walking in the galaxy. Looking at the expressions of Jiang Feiyun and the others again, they are obviously accustomed to this.

Lu Chen's nose moved slightly, and he smelled a faint smell of sulfur, which was unique to saltpeter, and at the same time, he also noticed that the air in the entire mine was extremely dry. The air is filled with a rich fire attribute aura, coupled with flame saltpeter, once a large amount of flame saltpeter is encountered in such an environment, it is indeed very easy to detonate flame saltpeter.

A small amount of saltpeter detonation, with limited power. And a large number of saltpeter explosions will cause a terrifying destructive force. Just like last night's saltpeter blast, Lu Chen could feel the tremor even if he was in the main hall of the mine. It stands to reason that last night's saltpeter blast of that magnitude was enough to collapse all the cavities in the pit. However, this is not the case. As soon as he thought of this, Lu Chen's heart became more and more curious.

Walk out of the Lingshi Mine Road for about a mile, and at this moment, Lu Chen saw several forks in front of him. Jiang Feiyun's figure disappeared into one of the forked mines, and then Ning Yu and Wu Tao also entered a fork in the tunnel. Soon, only he and Qiu Feng were left in the mine, and it was obvious that Jiang Feiyun had already made arrangements for him.

Qiu Feng took him to a fork in front of the fork and said, "In the future, you will be responsible for mining the spirit stones in this fork, and today I will first take you to familiarize yourself with the fork and how to mine the spirit stones." ”

After saying this, Qiu Feng took the lead in entering the fork mine, and introduced some of the marks in the fork to Lu Chen as he walked, according to which he would not get lost in the fork. Lu Chen secretly recorded these marks in his heart, and at the same time, his mind moved slightly, and a mist-shrouded, divine and majestic dragon gate suddenly appeared at the center of his eyebrows.

The dragon gate of knowing the sea slowly opened, and the power of knowing the sea poured out in a steady stream and shrouded the surroundings. Lu Chen's power of sea knowledge can cover a radius of ten zhang at most, and at this moment, within the scope of his sea knowledge power, you can see a series of bifurcated mines, just like the branches of a tree, but there are no Jiang Scarlet Yun, Ning Yu, and Wu Tao in these forks, I think Jiang Scarlet Yun and the three of them have gone deep into the depths of the mine, beyond the scope of Lu Chen's power to know the sea.

I don't know how long it has passed, and there is no way forward. The autumn wind turned the package on his back and poured out a lot of oddly shaped tools with a clang. Lu Chen's eyes swept away, and he saw that there were axes like anchors, shovels like blades, hammers with large heads and short handles, etc., which could be described as varied.

"These are the tools you need to mine spirit ore......" Qiu Feng said as he picked up an axe like an anchor and asked Lu Chen to step aside to take a closer look. Immediately, Qiu Feng put one hand on the stone wall of the cave as if sensing something, and after a while, Qiu Feng waved the anchor axe and began to chisel.

It took about a cup of tea for the autumn wind to dig out a stone the size of a basin from the stone wall at the end of the fork. After that, he used a hammer with a large head and a short handle and a chisel with a foot-long chisel to chisel and smash on the large stones of the basin. Time passed slowly, and finally the stone the size of a basin was chiseled into a fist.

At this time, Qiu Feng threw away the hammer and chisel again, and carefully sharpened the big stone with a blade-like shovel, and the stone skin was peeled off little by little, but Qiu Feng looked very hard, and a lot of sweat appeared on his forehead. The crust was eventually peeled away, revealing a small orange-yellow stone at the very core.

"This is the Spirit Stone!" Qiu Feng said with a smile.

At this moment, even if the autumn wind doesn't say it, Lu Chen knows that this small orange-yellow stone is a spirit stone. Just the first time he saw this spirit stone, Lu Chen was slightly surprised. It was not the first time he had seen a spirit stone, and when the outer disciples were assessed and registered, Lu Chen handed over a low-grade spirit stone. It's just that although the spirit stone and the spirit stone in front of him are the same size, the color is completely different.

"How could this spirit stone be this color?" Lu Chen asked in surprise.

As soon as Lu Chen said this, Qiu Feng's eyes revealed a strange look, and he really didn't expect Lu Chen to ask such a question. Asking this kind of question shows that Lu Chen probably doesn't know anything about spirit stones. And the people who can pass the assessment of the disciples of the outer sect of the Red Fire Sect are all disciples of the big family, or they are all people with a teacher's inheritance, and these people are naturally not unfamiliar with spirit stones. Lu Chen was able to pass the assessment of the disciples of the outer sect of the Red Fire Sect, and Qiu Feng naturally thought that Lu Chen was a disciple of a certain big family.

Stunned for a while, Qiu Feng couldn't understand what was going on, and said with a smile: "The lower grade spirit stones are slightly different according to different attributes, the lower grade spirit stones without special attributes are generally off-white, the lower grade spirit stones with fire attributes are generally orange yellow, and the lower grade spirit stones with earth attributes are generally dark yellow......"

When Qiu Feng said the difference between the various attribute spirit stones, Lu Chen suddenly understood. Although the lower grade spirit stones are about the same size as thumb nails, the spirit stones of different attributes will differ in color due to their different attributes.

Qiu Feng said as he started mining a low-grade fire attribute spirit stone, which made Lu Chen have a general understanding of how to mine the spirit stone. Qiu Feng wanted to hand over the mined low-grade spirit stone to Lu Chen, but Lu Chen naturally wouldn't accept it, and Qiu Feng explained a few more words before leaving.

When the autumn wind left, Lu Chen secretly pondered. When Qiu Feng was mining the spirit stone just now, Lu Chen estimated it, and it took nearly an hour to start counting from the beginning of Qiu Feng's hand until the spirit stone was completely mined. And with the consumption of true qi and energy, the speed of mining spirit stones will definitely decrease, and the time will be extended. There are only twelve hours in a day, but ten spirit stones need to be mined. In this way, in addition to mining spirit stones, I am afraid that the remaining time is only enough to recover true qi and rest, and not talk about cultivation at all. No wonder when he first arrived at the Mine Hall, there was no figure in the main hall of the Mine Hall.

Thinking of this, Lu Chen's brows furrowed, the spirit stones in the mine definitely need to be mined, but his own cultivation can't be delayed either. However, at present, it seems that there will definitely be a conflict between cultivation and mining spirit stones. This problem must be solved, otherwise if this goes on for a long time, his realm will stagnate, which is not the result that Lu Chen wants to see. And in this way, Xia Hantian and Bai Murong secretly made trouble and asked Wei Wenyan to assign himself to the mine, but they really didn't have a good heart.

After thinking about it carefully, Lu Chen had no clue. "You can only mine the spirit ore first, and then think of a way after the matter of cultivation. Lu Chen said in his heart. Then he walked forward, and came to the stone wall at the end of the mine, one hand against the stone wall, and at the same time, the divine sword qi cultivation technique slowly operated, which was the method used by the autumn wind before.

To mine spirit stones, the first step is to locate them. Although the stone wall of the mine contains spirit stones, if you dig indiscriminately without a purpose, not only will you not be able to chisel out the spirit stones, but you will also waste time, waste your true energy and energy.

The spirit stone is located in the underground stone, which is naturally invisible to the naked eye. However, for martial arts monks, it is not difficult to find the spirit stone. Lu Chen was sticking one hand to the stone wall at the moment, and at the same time slowly running the Divine Sword Qi Cultivation Technique, delicately controlling the operation of the exercises, so that the Divine Sword Qi Cultivation Technique only absorbed the spiritual energy from the stone wall of the mine tunnel.

Ordinary stones naturally do not have aura in them, only spirit stones contain rich aura. At this moment, Lu Chen ran the Divine Sword Qi Cultivation Technique, one hand was tightly attached to the stone wall and carefully sensing, and the whole person was like a sensitive detector. The Divine Sword Qi Cultivation Technique has been running slowly, but not a single wisp of spiritual energy has been ingested into Lu Chen's body, which means that there is no spirit stone in an area under Lu Chen's palm at the moment.

Lu Chen was not in a hurry, tried patiently, and slowly moved his palm against the stone wall. At a certain moment, Lu Chen's brows suddenly twitched slightly, and a wisp of fire attribute aura came from the depths of the stone under his palm. The moment he sensed the fire attribute aura, the Divine Sword Qi Cultivation Technique stopped working.