The Immortal Physician's Transmigration: Miraculous Rejuvenation

After the three realms united to defeat the forces of darkness, a brief but precious period of peace swept across every inch of the land like a spring breeze. However, just as undercurrents may lurk beneath a calm lake, a hidden worry was quietly brewing within the seemingly peaceful three realms.

Ye Yuanchen has recently been sensing a peculiar fluctuation of spiritual energy. It is extremely subtle, like a shooting star flashing across the night sky, fleeting yet carrying an indescribable eeriness. Whenever he concentrates to try to find its source, the fluctuation instantly disappears, as if it had never appeared, leaving only a faint trace that teases his vigilance.

“These past few days, there has been a strange fluctuation of spiritual energy around us, as if we are being watched in the dark, or as if a great disaster is about to befall us.” Ye Yuanchen frowned as he spoke to Mu Wanyue, Lu Zixuan, and Bai Youruo, his eyes filled with worry.

Mu Wanyue nodded solemnly, gently stroking the Lingxu Whip in her hand. The light emanating from the whip also became slightly heavy: "I also sensed it. Although the fluctuation was weak, it felt like a thorn in my side, making me uneasy."

Without a word, Lu Zixuan immediately pulled out various detection artifacts. These artifacts varied in shape; some were small and exquisite like compasses, their pointers spinning rapidly under the influence of spiritual energy; others were crystal clear like crystal balls, their internal light flickering erratically. He intently observed the artifacts' reactions, trying to glean any clues about the mysterious fluctuations: "If there is truly something hidden, we must not let our guard down; we must find the source of this spiritual energy fluctuation."

Bai Youruo then placed the Lingxu Lingyin Flute to her lips and played a melodious tune. The flute's sound transformed into golden, tangible sound waves, wandering around like agile sprites, attempting to resonate with the mysterious spiritual power and uncover its hidden secrets: "I hope my flute's sound can reveal some clues and unravel the mystery beneath this calm surface."

However, despite their best efforts, the fluctuation of spiritual energy remained as mysterious and unpredictable as a ghost lurking in the abyss of darkness, always evading their search.

At the same time, unusual signs began to quietly appear throughout the Three Realms.

In remote corners of the cultivation world, eerie rumors spread like wildfire. Some said that in the dead of night, they saw figures flickering with strange light in the mountains and forests. These figures moved as swiftly as ghosts and disappeared into the darkness in the blink of an eye. Others said that when they were in seclusion, they were suddenly disturbed by a mysterious force, their spiritual energy became chaotic, and they almost suffered a qi deviation. They still feel lingering fear to this day.

The spirit realm was not spared either. Some once vibrant spiritual plants began to wither inexplicably. Their emerald green leaves gradually turned yellow and withered, their vitality rapidly slipping away like sand in an hourglass. The spirit guardians tried various methods of watering with spiritual liquids and nourishing with spiritual energy, but with little success. Moreover, some key spiritual energy nodes in the spirit realm showed signs of instability, with spiritual energy fluctuating like waves, sometimes surging and sometimes weak, causing many inconveniences to the spirits' cultivation and daily life.

The mortal realm was also gripped by an eerie atmosphere. In some towns, rumors of ghosts were rampant. People often heard sinister sounds in the dead of night, as if some unknown entity was watching them from the darkness. The sounds were sometimes like low sobs, sometimes like sharp howls, sending chills down their spines. Furthermore, some inexplicable illnesses began to spread among the population; those afflicted became listless and increasingly emaciated, as if their life force had been drained away. The city's healers racked their brains, but could not find any cause.

Upon learning of this news, Ye Yuanchen and the others realized the seriousness of the situation and immediately decided to split into three groups to conduct investigations in the cultivation world, the spirit world, and the mortal world.

Ye Yuanchen arrived in the cultivation world and tirelessly visited remote sects and mountains where strange events had been reported. In a tranquil valley, he discovered some residual traces of spiritual energy, which were remarkably similar to the mysterious spiritual energy fluctuations he had sensed. He followed the traces, but they abruptly ended before a cloud of mist. This mist exuded a chilling eeriness, as if concealing endless dangers. As soon as Ye Yuanchen approached, he felt a powerful resistance rushing towards him, as if an invisible giant hand was preventing him from advancing.

"There must be a great secret hidden behind this fog, and I must uncover its true nature." Ye Yuanchen muttered to himself, circulating his spiritual power and unleashing the "Spirit Realm Chaos Suppressing God Technique." Golden light burst forth from his body, like the rising sun, attempting to dispel the eerie fog. However, the fog only thinned slightly, still like a thick veil, obscuring the truth behind it.

Just as Ye Yuanchen was preparing to venture further, a group of mysterious figures dressed in black robes emerged from the mist like ghosts. Wielding sharp blades that gleamed coldly in the dim light, they launched a swift attack on Ye Yuanchen. These mysterious figures were not to be underestimated; their attacks were fierce and unpredictable, each move imbued with powerful spiritual energy, as if they had undergone meticulous training.

Ye Yuanchen reacted swiftly, wielding the Spirit Void Holy Sword and engaging the mysterious figure in fierce combat. The Spirit Void Holy Sword transformed into a golden lightning bolt in his hand, its light dazzling and captivating. Wherever it struck, the black-robed figures retreated, their robes sizzling and crackling under the sword's radiance, as if being scorched. However, these mysterious figures seemed unwilling to confront Ye Yuanchen directly; they fought and retreated, gradually disappearing into the mist.

Ye Yuanchen pursued relentlessly, but when he stepped into the mist again, he found that the mysterious figure had vanished without a trace. An even stronger, eerie aura permeated the mist, as if mocking his futile efforts. Undeterred, Ye Yuanchen meticulously searched his surroundings, leaving no stone unturned, attempting to find the mysterious figure's trail and the truth hidden behind the mist.

Mu Wanyue arrived in the Spirit Realm and went straight to the location of the abnormal spiritual plants. She crouched down and carefully observed these plants, discovering that their roots were entangled in black threads. These threads, like evil vines, clung tightly to the roots, constantly draining the plants' life force. She attempted to sever these threads with her Spirit Whip; the pink and rainbow-hued whip shadow lashed at the threads like a dazzling rainbow. However, the threads were incredibly tough; the whip's attack could only cause them to tremble slightly, but it could not sever them.

"What exactly are these black threads? Why are they so troublesome?" Mu Wanyue was filled with doubt. She used her spiritual power to try to sense the source of these threads. Following the direction of the threads, she arrived at a secluded place in the spirit realm. This place was originally a tranquil lake, its waters crystal clear, reflecting the sky and the surrounding mountains. Now, however, the lake water had turned as black as ink, emitting a nauseating stench.

By the lake, Mu Wanyue encountered a worried-looking elder of the Spirit Clan. The elder solemnly told her that recently, strange sounds had been frequently emanating from the lake, as if some enormous creature was churning at its bottom. Furthermore, every night, an eerie mist would rise from the lake's surface; where the mist permeated, spiritual energy became chaotic, sending chills down one's spine. Mu Wanyue decided to keep watch by the lake that night, hoping to discover any clues.

Night fell, and the bright moon hung high, casting a cool, clear light. A thick layer of mist rose from the lake, like a mysterious veil shrouding it. Mu Wanyue watched the lake warily, her hands gripping the Spirit Whip tightly, ready to respond to any sudden event. Suddenly, a gigantic black tentacle emerged from the lake, like a black python, lunging towards her. The tentacle's surface was rough, covered with sharp barbs, and exuded a chilling aura.

Mu Wanyue swiftly swung her Spirit Whip, the pink and rainbow-colored whip shadows lashing fiercely at the tentacles. The tentacles recoiled in pain, but soon more tentacles emerged from the lake. These tentacles lashed through the air, seemingly intent on devouring Mu Wanyue. Mu Wanyue engaged in a fierce battle with these tentacles, nimbly dodging their attacks while searching for an opportunity to counterattack. She tried to see clearly what was happening in the lake; however, the dark power within was extremely strong. She could only vaguely make out a huge black shadow slowly moving in the lake, its outline indistinct yet exuding a chilling sense of oppression.

Lu Zixuan and Bai Youruo arrived in the mortal realm, visiting towns rumored to be haunted and plagued by strange illnesses. In an old-fashioned inn, they encountered a young man suffering from an illness. The young man was as pale as paper, his breath weak, as if a gentle breeze could knock him over. He mumbled incoherently, his eyes glazed over, seemingly trapped in some terrifying hallucination.

Lu Zixuan immediately cast a spell to carefully examine the young man's body. He discovered that the young man's body seemed to be corrupted by an evil force, extremely hidden, like a venomous snake lurking in the darkness, difficult to detect. It silently roamed through the young man's meridians, constantly destroying his life force. Bai Youruo, meanwhile, played the Lingxu Lingyin Flute, attempting to dispel the evil force within the young man's body with its music. The melodious and gentle flute music transformed into golden light, slowly enveloping the young man. The young man's expression eased slightly, and he spoke less incoherently, but the evil force still stubbornly clung to his body.

“This evil force is very troublesome. We must find its root cause in order to completely solve the problem.” Lu Zixuan frowned. He and Bai Youruo decided to start their investigation by looking at the young man’s recent whereabouts.

After making some inquiries, they learned that the young man had recently visited an abandoned temple outside the city. The two immediately went to the temple, which was filled with an eerie atmosphere, and the walls were covered with strange runes. These runes flickered with a faint light, as if telling a dark and unknown history.

Lu Zixuan and Bai Youruo cautiously explored the temple when suddenly, a gust of cold wind blew, and the temple gates slammed shut. From the darkness, countless shadowy figures lunged at them. These figures resembled vengeful ghosts, emitting chilling screams. Lu Zixuan quickly set up the "Spirit Void Sacred Array," its light flashing, temporarily blocking the shadows. Bai Youruo played her spirit flute, the music transforming into powerful purifying energy that swept towards the shadows. The shadows gradually dissipated under the impact of the flute's sound, but new shadows quickly appeared.

Ye Yuanchen, Mu Wanyue, Lu Zixuan, and Bai Youruo all encountered numerous difficulties in their respective investigations, but they did not back down. They knew that behind these seemingly isolated anomalies, there was likely a massive conspiracy. This conspiracy might once again drag the Three Realms into an endless abyss of darkness. They had to race against time to uncover the truth hidden beneath the calm, find the mastermind, and stop this imminent crisis. On this path of investigation filled with unknowns and dangers, could they successfully avert an even greater challenge? Everything remained uncertain, but their faith was unwavering. For the peace of the Three Realms, they would forge ahead bravely and never give up.