Chapter Sixteen: Black Domain Dragon Soul

In the dark cave, Lu Yun forcefully unleashed the Buddhist "Great Asura Eye," using the most dominant "Undying Heart Zen Technique" of the Buddhist sect to control the sword. With a full-force strike, he finally cracked a gap in the black pillar of light. Transforming into a golden light, he entered the black pillar.

As he entered, the golden light around Lu Yun intensified, revealing his true form. Surveying his surroundings, Lu Yun's expression changed drastically; it was nothing like he had imagined. He had expected the black pillar to be small inside, and he would need to appear in a spiritual form. However, the space inside turned out to be extremely unique. Although incomparable to the space created by his ancestors, it was still extraordinary. There were no shining nebulae, but the surroundings seemed unusually vast, as if there were no boundaries. Countless eerie winds and various spirits floated freely in the air.

Lu Yun's golden light illuminated the space within three yards, making it brightly visible. Observing his surroundings, he felt as if he stood in a space without directions—no front, back, left, right, up, or down. It was a strange feeling, making him uncomfortable. With a slight flash in his eyes, Lu Yun began emitting his unique mental waves, sending out nine different frequencies rapidly spreading in all directions.

In mid-air, Lu Yun's body emitted a seven-colored radiance as he activated the fifth layer of "Heaven and Earth Without Limits," the "Myriad Transformations Unifying into One." The colorful light shone like the midday sun, illuminating a large portion of the sky. The golden light on Lu Yun's body was gradually suppressed by the seven-colored radiance, and the dark red spiritual energy around him swiftly approached.

Lu Yun calmly said to himself, "The spiritual energy here carries a hint of chilling aura, aiding these spirits and souls in cultivation. For ordinary cultivators practicing yang techniques, it's of no use. Fortunately, my Heaven and Earth Without Limits encompasses yin and yang, the five elements, and both Buddhist and demonic paths, all-encompassing and all-inclusive." As he spoke, he quickly absorbed the surrounding spiritual energy. Soon, the dark red spiritual energy around him was completely absorbed, and Lu Yun began moving in a random direction, choosing a path deeper into the space.

As Lu Yun delved deeper, he realized the abundance of monsters in the cave. The further he went, the more formidable the monsters became. In the following days, he faced numerous monsters every day, leaving him exhausted. Sometimes, he had to avoid encounters with powerful monsters. Despite the challenges, he, Zhang Aoxue, and Li Hongfei had not experienced anything like what had happened to Lu Yun. They were either lucky or unfortunate.

Xuan Yin True Immortal, standing at the entrance of the valley, observed the intense demonic aura above the Absolute Yin Valley. He couldn't help but smile. Suddenly, he noticed the thick demonic aura diminishing, indicating that the disciples might have gained something. It seemed promising.

Watching the changes above the Absolute Yin Valley, Xuan Yin True Immortal's expression turned grave. His eyes showed a hint of shock as a bright red light suddenly pierced through the sky above the valley. The dazzling column of light exuded an overwhelming aura, dominating the heavens and the earth. Although it lasted only a brief moment, the demonic aura above the Absolute Yin Valley significantly weakened.

Wondering what had happened inside the valley, Xuan Yin True Immortal speculated silently. Unfortunately, he couldn't discern anything and could only anxiously wait at the valley entrance. He whispered, "I hope they are all safe. Everything must be peaceful; otherwise, it won't be good."

"I don't know how long it has been descending. Finally, Luyun felt something below, as if a scorching heat was emanating. Slowly, as he descended further, it became hotter, but the dragon soul seemed more spirited. Finally, Luyun noticed a fiery red below, which turned out to be a crack in a volcano, with raging flames and molten lava below. No wonder it was so hot.

Luyun carefully explored the situation below with his mental waves, but unfortunately, there was no sign of life there, and it seemed that no living being could survive. By now, Luyun had understood the dragon soul's intentions, but it was too late to stop it. Looking at this dragon, its original form must be a fire dragon, which explained its fondness for these flames. Luyun could feel the power of the dragon soul surging, and he was slightly surprised.

Here, his gloomy Ghost Sect transformed soul, under the extremely hot flames, had lost its power and could not be used at all. It seemed that Yiyuan's Yitian Technique was not very effective against the dragon soul either. It seemed that he could only use the Confucian 'Haoran Tiangang' technique, which was extremely yang and strong, and could enhance his power here as well.

Luyun suddenly stopped descending, and his whole body burst into a red light. A momentum of extreme yang and strength, like the sun in the sky, vast and powerful, awe-inspiring, surged. Watching the dragon soul below, Luyun suddenly noticed a reflective object. Looking closely, the light below was too strong, making it difficult to see. But in Luyun's mind, the appearance of that thing was vividly displayed—it was a long sword with an ancient form, inserted into a hard rock wall, only half of the blade exposed, shimmering with a beautiful red light, very enchanting.

Luyun was surprised. Could this sword be the treasure sword mentioned by the dragon soul, crafted by the three masters three thousand years ago? At this moment, the dragon soul below was dancing in the flames, and its body was rapidly growing, its power increasing quickly. A wild breath instantly broke through Luyun's surrounding three layers of true qi barriers, suppressing his originally powerful momentum.

The dragon soul roared wildly. At this point, its body had grown to more than a hundred and fifty zhang long, with a thickness of more than ten zhang, resembling a divine creature in the sky, extremely terrifying. The dragon soul looked up at Luyun, loudly roaring. Its giant claws danced, and a flame, a hundred zhang high, soared into the sky, directly engulfing Luyun. The flames filled the sky, and the entire space suddenly lit up, with a tens of zhang wide sea of fire surrounding Luyun. The giant eyes of the dragon soul sparkled with a triumphant look, and its body suddenly flew up. The fiery giant tail, aiming at Luyun surrounded by flames, violently struck, obviously trying to annihilate Luyun in one fell swoop, leaving him no escape.

Luyun's eyes reflected a fiery red. His hands formed a technique, and the 'Wanyuan Guiyi' heart technique was once again executed. At the same time, the 'Haoran Tiangang' true qi around his body suddenly burst out. The red light in the flames flashed with a strange brilliance, not very noticeable. In the flames of the underground fire here, containing extremely hot sun true essence, it was very beneficial for the Confucian 'Haoran Tiangang' technique. Luyun absorbed the thick sun true essence around him with all his strength, rapidly enriching his own power to deal with the dragon soul.

Since Luyun was in the dazzling flames, he couldn't see the dragon soul's figure, but he understood its every move through his mental waves. Luyun sneered in his heart, and the long sword in his hand trembled. A thousand three hundred powerful true essences instantly slashed towards the dragon soul's giant tail. At the same time, he moved eighty zhang away in an instant, avoiding the dragon soul's tail.

Standing in the void, Luyun's body shimmered with a crimson light, coldly watching the dragon soul in front of him. Luyun spoke, 'I didn't expect your original form to be a fire dragon, no wonder you've been escaping to this place. But even here, you can't escape my grasp.'

The dragon soul opened its giant mouth and roared, 'Human, stop talking nonsense. Since you're here, don't think about leaving alive. Everything here is under my control. I can do whatever I want, and no one can stop me. The raging fire is overwhelming, and unless the dragon soul is broken, no one can kill me. You better accept your death.' The dragon soul's body expanded, and its giant claws danced. Countless flames instantly rose from the underground, forming a strange and fierce array, surrounding Luyun. The dragon soul opened its giant mouth, and the dragon flames rolled towards Luyun. The imposing aura was extremely shocking!

Luyun's eyes showed a hint of seriousness. The high temperature around could instantly melt everything, and he was soaked in sweat. Luyun arranged nine waves of true qi around his body, layer by layer, protecting himself tightly. Through the mental waves' detection, Luyun felt that the dragon soul's power had increased at least sevenfold compared to before, which was terrifying. Luyun was very cautious. Although he had already entered the 'undying' realm, facing this fiery divine dragon, he had to be extremely careful.

Feeling the dragon soul starting to attack, Luyun's long sword automatically soared into the air, spinning rapidly around him. Layers of reddish Confucian true qi stubbornly resisted the dragon soul's dragon flames, which carried a destructive aura. Luyun stood in the fiery array, his body tensed. His hands slightly stretched out, a reddish light ball flashing with flames in his left hand, and a black light ball in his right hand, shimmering with eerie black mist. Looking at the giant dragon soul phantom, Luyun smiled coldly. His hands suddenly closed together, and two completely different powerful true essences met, instantly generating a high-intensity explosion.

Luyun extended both hands towards the dragon soul, and a dark red light beam, carrying a destructive aura, struck the dragon soul's body. The dragon soul roared thunderously, and its body was instantly shattered, falling down again. The flames around Luyun also disappeared in an instant. Watching the falling dragon soul, Luyun knew it wouldn't die like this. Although this blow shattered its phantom, it wouldn't deal a fatal blow. Luyun's mental waves clearly felt its still strong power rapidly recovering.

Luyun was surprised, thinking about the situation. According to the dragon soul's words, three thousand years ago, the three cultivator masters destroyed its divine dragon body but couldn't kill it. In the end, it resulted in one death and two injuries, and they could only trap it here. Now, to kill its soul would probably not be easy for him. Luyun had extensive knowledge, but for a soul like this without a physical form, ordinary techniques wouldn't

 work.

Now, the only method was to use his mental waves, employing that high-frequency oscillating mental wave to destroy the dragon soul's soul. From the recent experience, this method seemed to be very effective. Hopefully, it would be enough to eliminate the dragon soul.

With a loud roar, the dragon soul's body soared into the air again. In just a moment, it had already restored its original strength. Truly an extraordinary creature that couldn't be killed. The dragon soul roared, 'Human, it seems I underestimated you. Unexpectedly, besides knowing Daoist and Ghost Sect techniques, you also know the Confucian techniques from the past. Truly unexpected. I wonder what else you know. Display everything you've got. I said earlier that no one can kill me here, even gods. Now, let me see what else you have. I don't believe you won't tire. When your true essence is exhausted, it will be your time to die.' The dragon soul was surrounded by raging flames, extremely mysterious, resembling a divine beast of raging fire."

"Luyun coldly said, 'Whether I can kill you or not, you'll know in a moment. Be careful.' With these words, the radiance of the long sword in his hand flickered, and a sword aura several dozen zhang long, carrying a tearing aura, descended vertically, as if it could split mountains and crack the earth, directly aiming at the huge body of the dragon soul.

The dragon soul waved its claws, and a dragon-shaped qi met Luyun's sword aura. At the same time, the dragon soul swung its claws, and a green flame, like a spiritual snake, stretched and contracted endlessly, directly enveloping Luyun. Luyun's eyes turned cold, and a white eerie ghost energy condensed in the palm of his right hand, patting towards the green flame. As the palm struck, Luyun's body instantly moved, appearing above the dragon soul's head.

Luyun's entire being radiated a crimson light, and colorful rays instantly spread across the entire space. The surrounding flames weakened under his overbearing and domineering aura. Luyun's eyes shot out colorful brilliance, and his mental waves were released at an extremely high frequency, destroying the dragon soul's brain nerves frantically. Luyun, at this moment, exuded an aura of unparalleled dominance, and the entire space was filled with his overbearing presence. Staring at the dragon soul, Luyun's eyes reflected a cold and ruthless expression, resembling a demonic god, disdainful of the heavens.

The dragon soul's body soared, eyes gleaming with fierce intent. Its body was about to sweep towards Luyun when suddenly, a high-density mysterious force pierced through its thirteen layers of dragon qi protection, instantly hitting its central nervous system, ruthlessly destroying its brain nerves. The dragon soul shivered, a sorrowful and eerie roar filling the entire space, the sound both tragic and piercing. Its body automatically exploded, turning into a red gas mass, continuously flickering with unpredictable brilliance.

Having suffered a severe blow, the dragon soul's body shattered under the relentless assault of Luyun's high-frequency mental waves, falling again. Luyun sensed its still formidable power rapidly recovering and pondered the situation. According to the dragon soul, three thousand years ago, three cultivator masters destroyed its physical dragon body but couldn't kill it. It resulted in one death and two injuries, trapping it here. Killing its soul wouldn't be easy, and ordinary techniques wouldn't suffice.

Now, the only option was to use mental waves, employing the high-frequency oscillating mental wave to destroy the dragon soul's soul. Recent experience suggested this method might be effective. Luyun hoped it would be enough to eliminate the dragon soul.

With a roar, the dragon soul's body soared again, rapidly regaining its original strength. Truly an extraordinary creature that couldn't be killed. The dragon soul roared, 'Human, it seems I underestimated you. Unexpectedly, besides knowing Daoist and Ghost Sect techniques, you also know the Confucian techniques from the past. Truly unexpected. I wonder what else you know. Display everything you've got. I said earlier that no one can kill me here, even gods. Now, let me see what else you have. I don't believe you won't tire. When your true essence is exhausted, it will be your time to die.'

The dragon soul was surrounded by raging flames, mysterious and resembling a divine beast of raging fire."