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nLi Yuanqing held the stone in his palm and sized it up for a long time, but he could not figure it out. However, since this stone had such power, it must have a powerful background. Moreover, it existed in such a place. The meaning was obvious.

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nHe put away the gray stone for the time being and came out of the domain. He appeared at the center of the lava and looked in. In the center of the lava, a huge bubble was slowly forming and was about to break.

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nIt was obvious that the large wind outside was caused by the huge bubbles in the center.

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nThe power was too great. Even with Li Yuanqing’s strength, he did not dare to be careless. But there was such a powerful force contained in it. If he stood in the middle, would there be different crystals formed?

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nThese crystals were good materials for refining weapons. Now that the human race had a lot of things to do, it was time for them to need materials. If they could mine this crystal mine, it would undoubtedly be a huge increase in the strength of the entire human race.

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nBut even Li Yuanqing would have a hard time coming here. If he wanted the ordinary humans to enter and mine steadily for a long time, it seemed like he would have to spend some effort. At the very least, it would be very difficult now.

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nJust as Li Yuanqing was conflicted, he suddenly seemed to see something familiar at the bottom of the crystal mine. There was a dark place below the hole that he had blasted out just now. The black stone did not look very conspicuous, but if one sensed carefully, the aura inside was a little familiar.

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nHe attached himself to the wall and took a piece from the black stone. He carefully observed it and pinched it hard. It was actually difficult to crush it. Moreover, this black stone seemed to have a very strange power that could block out one’s divine sense. It was even difficult for spiritual energy to penetrate it at once. There was a very obvious resistance.

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nThis feeling was very familiar. Li Yuanqing kept feeling that he had seen this stone somewhere before. He took out a long black stone. This stone was completely black and its overall color was purer. Its surface was very smooth.

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nOther than the difference in detail, the two of them were identical in every other way. Moreover, their characteristics were so similar. It could block out one’s divine sense, and its defense was astonishing. It could also gradually dilute spiritual energy.

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nOnly then did Li Yuanqing realize that the building materials of Black Stone Valley that he had been puzzled about came from this place. He originally thought that he had discovered this mineral vein by chance, but judging from the current situation, he was not the first to discover this place.

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nAt least a thousand years ago, the humans here had already discovered this secret place and even mined the stones here to form their own solid fortress. How could Li Yuanqing not be shocked by this scene?

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nHowever, if the human race had such strength back then, why were they defeated when they fought with the demons? How powerful were the demons then?

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nLi Yuanqing took out a golden chisel. The chisel seemed to have gained consciousness as it nodded crazily on the stone wall like a small woodpecker. Every time it nodded, a square stone fell from it.

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nWhile the stones that had fallen into the air were still falling, they suddenly disappeared, as if they had disappeared into thin air. If someone was in Li Yuanqing’s domain now, they would discover that the disappearing stones had reappeared in Li Yuanqing’s domain. They were piled up here one by one, and the scene was very spectacular.

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nDuring the excavation process, Li Yuanqing also discovered that these places were divided into levels.

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nNot only were there black stones behind, but there were also many crystals mixed in. It looked like they were laid out layer by layer. This situation was really strange. He wondered how they were formed.

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nUnknowingly, Li Yuanqing had already chiseled away a lot of these black stones. A semicircular gap dozens of meters in diameter appeared on them. In his domain, a small mountain made of black stones and crystals was piled up. It was a delightful sight.

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nNo wonder the humans at that time could have so many black stones to build such a fortress. If there was such a mineral vein, it would form an endless supply of rich energy here. All of this made sense. However, this made people feel even more emotional. Back then, the human race actually had such abundant resources. Compared to the dilapidated appearance now, it was really lamentable.

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nIn fact, those rebels even had to rely on obtaining forbidden energy from the demons to strengthen themselves. The humans a thousand years ago would never have thought that their descendants would be in such a dilapidated state. It was a mystery.

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nAfter excavating enough black stones, Li Yuanqing gradually approached the central area. This area was a place with very mixed energy. When he was outside, he did not feel this way. When he was close, he could feel the extremely mixed energy.

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nMany completely different energies were mixed with each other. The degree of chaos was simply jaw-dropping.

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nIn fact, as long as those low-quality crystals crossed a certain boundary and landed inside, they would be shattered into pieces. It was as if they were crazily trampled on by an invisible hand. They were squeezed crazily and finally turned into powder that landed in the magma below.

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nThe crushed crystal powder returned to the magma and rolled and jumped. In the end, it was continuously purified and gathered to a member of the mixed army. It went on and on like a cycle. The rolling magma was like a ruthless purification machine. It purified everything that contained impurities and turned it into even purer energy. In the end, it turned into sparkling crystals that froze on the rock wall above.

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nLi Yuanqing wrapped himself in a thick shield and slowly leaned towards the center. Just now, he thought that the middle was no different from the periphery, so he only moved around the periphery.

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nHowever, after seeing the magical cycle inside, he became even more curious about the crystals formed inside. How huge were the crystals inside?

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nAs he pondered, Li Yuanqing unknowingly approached the inside. Until a moment later, a voice suddenly sounded in his heart.

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nCongratulations for signing in to the Lava Devil Cave successfully. Reward received.

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nReward One: Mordor Flower Seed.

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nReward Two: Obsidian Mother Stone.

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nThese two rewards were so unique that Li Yuanqing had never heard of them before.

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nThe Mordor Flower Seed and the mother stone of obsidian?

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nLi Yuanqing found it difficult to part with these two rewards. They sounded very powerful, but he felt that the mother stone of obsidian was more useful. If Li Yuanqing was not wrong, the black stone in his hand was the obsidian mentioned by the system.

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nHe did not know what kind of power the mother stone had. Although he really wanted to choose the mother stone of obsidian, he could vaguely hear another voice telling him. “Mordor Flower Seed.”

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nLi Yuanqing seemed to have lost consciousness as he muttered to himself. “Mordor Flower Seed.”

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nReward issued! Received Mordor flower seed!

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nThe system’s voice gradually weakened. Li Yuanqing came back to his senses and thought about what he had just experienced. Something seemed to have happened just now, but nothing seemed to have happened. What was going on? Could it be an abnormally strange dream, or had he gone crazy from cultivating?

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nBefore Li Yuanqing could think carefully, a majestic energy came from under his feet. He looked down and saw a huge bubble that was a thousand feet long had already gathered below.

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nA huge bubble in the center attracted the nearby bubbles and gathered together, successfully forming this big fellow. The bubble twisted its body violently, as if it could not tolerate its current body. It kept struggling as if there was a huge wild beast locked inside. It roared and rushed left and right, wanting to escape such restraints.

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nLi Yuanqing did not dare to be arrogant. He vaguely felt that there must be something under the central area where he was standing just now.

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nWhat is the Lava Devil Cave? He had too many doubts that no one could help him solve. However, he had to leave this cave for the time being. The cave seemed to have sensed that this outsider had stayed here for too long and wanted to chase him out. It kept releasing its majestic energy and tearing at Li Yuanqing’s body, determined to chase him as far away as possible.

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nLi Yuanqing’s body flashed and disappeared from the cave. He instantly arrived at the periphery from the center. When he arrived, the huge bubble inside had already completely taken shape. The tall and big bubble was like a cover that covered the sky and sun, covering almost the entire pool of magma.

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nSeeing that this violent wind was about to form and was about to blow out unscrupulously, Li Yuanqing could not stay here any longer. He immediately decided to turn around and leave.

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nBut there was a strong reluctance in his heart before he left, it was as if the voice that he had suddenly remembered was asking him to stay again. It wanted him to continue staying in the magma pool and search deeper to see what was under the magma.

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nAlthough this voice was so urgent, Li Yuanqing had already gained a lot by arriving here. Not only did he find the Dragon Origin Crystal he wanted, but he also obtained many unexpected surprises. This harvest made him satisfied. As for the other things, they were not that important.

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nA red vine stretched out from Li Yuanqing’s shoulder and slowly spread up. The red vine seemed to be reluctant to part with something in the cave.

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nLi Yuanqing did not have the time to care about what he was thinking. He was focused on escaping. If he was any later, the violent wind would catch up.

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nThe originally shocking Black Wind Canyon was now in turmoil. The demons and humans within a radius of hundreds of miles all looked over in shock. They had never seen such a ferocious day in the Black Wind Canyon. This huge energy seemed to want to tear the entire sky apart. Even from a hundred miles away, they could feel the pressure from it.

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nBehind Li Yuanqing, who was in the middle of this energy, was crazy flames. He tore through the sky like a swan and rushed out of the Black Wind Canyon.

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nThe entire Black Wind Canyon, which was already roaring with anger, kept trembling. The intense vibration pulled the entire world along with it. An extremely strong wind that was rarely seen in a hundred years instantly swept through the entire canyon. In almost an instant, it filled all the space in the canyon. That energy immediately expanded the width of Black Wind Canyon.

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nAfter the culprit, Li Yuanqing, lured the violent wind out, he panicked and fled far away. After escaping more than ten miles away, he looked back and saw that the sky behind him was completely covered by dark clouds. Moreover, the dark clouds had actually formed a vortex in the center of the Black Wind Canyon and was constantly expanding.

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nViolent roars kept spreading out from the canyon like a sleeping beast waking up to vent its dissatisfaction.

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nLi Yuanqing looked at the furious sky with lingering fear. If he had run a little later and been caught by the black sandstorm behind him, he might not have been able to escape. He had really attracted a lot of trouble this time, but he had gained so much.

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nThis trip to the Black Wind Canyon was more successful than he had imagined. He did not expect that there would be such a rich resource in the Catacombs.

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nLi Yuanqing thought that the resources in the catacombs had already been completely occupied by the demons. However, he only saw today that there were still many good things down there. It was just that these places were very dangerous. Even with his current strength, he had to take such a huge risk, let alone those little demons.

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nThe commotion caused by the Black Wind Canyon attracted many humans and demons over. They all saw an opportunity. Generally speaking, violent changes were the signal that a natural treasure was about to descend.

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