In the tranquil valley, a surge of intense heat meanders through, causing the toxic mist floating in the upper air to constantly fade and shimmer. On one side of the valley, a massive boulder bears a figure seated upon it, facing a towering crimson cauldron suspended in mid-air before him. Within the cauldron, a vibrant green flame burns fiercely, and the intense heat radiates outward from this very source. Beyond the boulder, several figures stand still, their eyes fixed upon the cauldron. "It's already been six days," Xinlan murmured, gazing at the figure meditating on the stone, and sighed. "A seventh-rank pill isn't easy to prepare—it naturally takes considerable time," the young physician said, not at all surprised, speaking softly. "Moreover, I notice the qi within the cauldron growing increasingly dense. I believe the pill is nearing completion." "Heard this, Xinlan also nodded slightly, about to speak—yet at that moment, deep within the medicinal cauldron nearby, it suddenly trembled, emitting a clear, resonant 'hum' that rippled outward and eventually echoed throughout the valley. 'What on earth?' The unexpected development startled the young physician and her companions, who immediately turned their attention toward the cauldron. Following the hum, a remarkably dense aura of medicinal qi surged forth from the cauldron like a volcanic eruption. Glimpsing the source, one could clearly see that the qi emanated from a perfectly round pill, enveloped within a vibrant green flame. 'It's forming!' The young physician's face brightened at the sight of such a rich and vibrant qi. Under the watchful eyes of the three physicians, the medicinal qi pouring out of the cauldron grew increasingly dense. Eventually, the entire valley was filled with a refreshing, invigorating fragrance—clearly the telltale sign of the pill's formation." Although the Yin-Yang Life-Soul Pill is rated as a mid-tier seventh-rank medicine, its preparation is not particularly difficult. Moreover, having previously assisted Tang Zhen in refining the Fire Bodhi Pill, this time the refining process proved surprisingly smooth for Xiao Yan—almost seamless, with no setbacks occurring at any point. As the medicinal qi surged forth, Xiao Yan's slightly narrowed eyes gradually opened, a look of satisfaction spreading across his face. The surge of medicinal qi intensified steadily, eventually bursting directly through the toxic mist hovering above the sky. Drawn by this dense and powerful qi, the clouds in the sky rapidly gathered and thickened. Witnessing this, Xiao Yan's eyes immediately brightened with delight—unaware that the Yin-Yang Life-Soul Pill could also summon medicinal lightning. For this very thing that troubled alchemists the most, Xiao Yan found it his favorite to witness, as each time his Earth Demon Puppet underwent the refining process of Dan Lightning, it grew stronger—last time, it had been strengthened to a level capable of rivaling an Eight-Star Domain Sovereign. He wondered what level it would reach after another such refinement. Yet, as Xiao Yan eagerly summoned the Earth Demon Puppet once again, the dense clouds gathering in the sky suddenly halted their descent and began to twist and writhe. Though a deep, resonant thunder echoed within, there was no longer the dramatic crack of lightning splitting the sky and falling in a sweeping arc. Instead, after a brief undulation, the clouds gradually began to dissipate. Xiao Yan stared in wide-eyed astonishment at the remaining black clouds in the sky, and after a moment, finally chuckled softly. "Brother Xiao Yan, the toxicity within Luoshen Gorge is extremely dense. Perhaps the toxic vapor has obscured the essence energy, making it difficult for the essence lightning to find its target, thus causing it to naturally dissipate..." The young healers also paused, taken aback by this scene. Xinlan paused briefly before speaking out loudly. Hearing this, Xiao Yan could only nod. After his earlier lapse in focus, he now had a clearer understanding—this situation indeed stemmed from the presence of some toxic qi masking the effect, but there was also another factor at play. The Yin-Yang Life Soul Pill, though rated as a mid-tier seventh-rank medicine, was only barely mid-tier in quality. If not for its unique efficacy, it might have been considered merely a low-tier seventh-rank pill. Thus, the qi emitted by the pill may not have been strong enough to trigger the medicinal lightning on its own. Combined with the masking effect of the toxic qi, the medicinal lightning appeared only to gradually fade away. "Unlucky... though now with time running short, there simply isn't room to deal with the medicinal lightning..." Mentally sighing, Xiao Yan waved his hand and drew the pill—black and crimson in color—out from the medicine cauldron. "This is indeed the Yin-Yang Spirit Soul Pill," Xiang Yan murmured, gazing at the pill in his hands. The pill was roughly the size of a dragon eye, with a blend of black and red hues, smooth and lustrous. When he pressed his palm against it, one side felt cool while the other remained warm—a most comfortable sensation. Xiao Yan waved his hand, and a stream of Lirui Lotus Heart Fire emerged, enveloping the corpse with a soft *puff*. Under the intense heat of the Lirui Lotus Heart Fire, the ice covering the corpse rapidly melted away. Upon seeing Tian Huo Master take the pill, Xiao Yan swiftly retrieved a jade vial from his storage amulet. Inside the vial flowed vibrant crimson blood, radiating an astonishing surge of turbulent energy—precisely the essence of the day-toxic scorpion dragon beast. With a firm press of his palm, the vial shattered, releasing a large clump of blood that drifted out and, as Xiao Yan waved his hand, poured over the corpse enveloped in flames. As soon as the blood touched the corpse, sharp hissing sounds erupted, and the corpse’s skin began to rapidly decay. This sudden turn of events did not cause the slightest change in Xiao Yan's expression. With a calm glance, he swiftly raised the temperature of the Lirui Lotus Heart Flame. As the flame warmed, the blood clinging to the corpse's body began to slowly seep into it. The once pale skin and muscles of the corpse gradually regained vitality under the infusion of this refined blood. After about thirty minutes, the eyes of "Yunshan," which had remained tightly shut, suddenly opened. Within those previously lifeless eyes, subtle pulses of vitality emerged—though this vitality did not belong to Yunshan himself, but rather stemmed from the soul thread of the Celestial Flame Sovereign. At that very instant, Xiao Yan suddenly commanded in a deep, resonant voice, "Master Yao, come in!" The Tianhuo Master, who had been waiting in readiness, instantly jolted at Xiao Yan's commanding voice. His form shimmered and blurred as he surged forward, directly rushing through the crystal lotus heart flame, and finally plunged into the corpse radiating a vibrant red glow. As his soul was about to make contact with the corpse, an unusual black-red ripple suddenly surged from the center of his brow, spreading like lightning across his entire body. "Pff!" With the ripple expanding, the Master's soul collided sharply with that of the corpse. This time, instead of being repelled, it gently merged into the corpse's soul. "Success?" Both Xinlan and Xiao Yixian, standing by, were filled with excitement upon witnessing the seamless integration of the Master's soul into the corpse's body. "Not yet," the Master continued. "Master Yao must endure the burning of the strange fire and gradually gain control over the body—only then can it be considered a true rebirth through fire." Xiao Yan shook his head seriously, his gaze now fixed on the most crucial step ahead. Should the Heavenly Fire Sovereign falter under the scorching flames of the Strange Fire, not only would his physical body be ruined, but his soul might also suffer a fatal blow. "You two stay outside guarding the valley entrance. The Earth Spirit Puppet will assist you. Make sure no one enters!" Xiao Yan said firmly. The incineration of the Strange Fire lasted for two full days, yet the flame still swirled around the corpse without dissipating. Though the corpse's face, once wracked with pain, now seemed to have grown numb—its suffering gradually easing—something deep and vast was quietly gathering within its body. Another day passed. At the far end of the valley, which had remained so still, a faint rustling of wind suddenly broke through. After a while, a white-robed elder, holding a serpent staff, emerged slowly at a distance of one hundred meters from the valley entrance. Behind him, one after another, a series of white silhouettes began to appear. "Ah, the toxic air of Luoshen Gorge is so thick—it even masks the very essence of the magical core. But now... I've finally found it," smiled the elder, gazing at the valley. Yet his smile carried an especially solemn, almost chilling quality.