The Immortal Physician's Transmigration: Miraculous Rejuvenation

Before the excitement and jubilation of the Three Realms Celebration had completely dissipated, Ye Yuanchen and the others sensed a mysterious and subtle fluctuation of spiritual energy. This fluctuation was unlike any they had ever experienced before; it seemed to transcend the boundaries of time and space, carrying an ancient and solemn aura that faintly resonated in their hearts, like a gentle call from the distant heavens.

"Did you feel it? This fluctuation of spiritual energy... seems to contain some kind of special mission." Ye Yuanchen frowned slightly, a hint of doubt and vigilance in his eyes. He stopped what he was doing and quietly sensed the source and direction of this fluctuation.

Mu Wanyue, Lu Zixuan, and Bai Youruo also stopped what they were doing and nodded solemnly.

"This power is not simple; it seems to be guiding us to an unknown place," Mu Wanyue said softly, unconsciously gripping the Spirit Void Whip in her hand, as if ready to deal with any potential dangers at any moment.

Lu Zixuan quickly took out some detection magic treasures, trying to trace the source of the spiritual energy fluctuations, but these magic treasures seemed powerless in the face of this mysterious power, only flashing a faint light and unable to give any definite information.

“This power is beyond my detection range. It is hidden very well and seems unwilling to be easily discovered.” Lu Zixuan frowned, a hint of frustration in his eyes, but more so a curiosity and desire to explore the unknown.

Bai Youruo began to play the Lingxu Lingyin Flute, the sound flowing slowly through the air as she tried to resonate with the fluctuations in spiritual energy and explore its mysteries. After a moment, she opened her eyes, a hint of surprise flashing in them: "There seem to be some vague images and information hidden in this fluctuation, but I can't fully decipher them. It seems to be related to an ancient prophecy."

Upon hearing this, everyone felt a chill run down their spines. Ancient prophecies often foreshadowed significant events and missions, which filled them with both excitement and unease.

After some discussion, they decided to follow the guidance of this spiritual energy fluctuation and embark on a journey to uncover the truth. They bid farewell to the people of the spirit realm and headed in the direction from which the spiritual energy fluctuation came. Along the way, they traversed countless mountains and rivers, enduring numerous hardships and dangers, but the mysterious spiritual energy fluctuation consistently guided their direction.

Finally, they arrived at the foot of a mysterious valley. Thick fog filled the valley, obscuring the view inside, but the powerful spiritual energy fluctuations emanated from its depths.

"What secrets are hidden here?" Ye Yuanchen gazed at the valley, his heart filled with doubt and anticipation. He cautiously stepped into the mist, with Mu Wanyue, Lu Zixuan, and Bai Youruo following closely behind him.

Upon entering the valley, they found the environment to be quite peculiar. Ancient runes and patterns were carved into the surrounding rocks, emitting a faint glow that seemed to tell an ancient and mysterious story. Strange spiritual plants grew on the ground, their shapes and colors unlike anything they had ever seen before, exuding a mysterious aura.

As they ventured deeper, the spiritual energy fluctuations grew increasingly intense, and suddenly an ancient temple appeared ahead. The temple's architecture was simple yet solemn, exuding an aura of reverence. The temple's doors were tightly shut, and a huge circular rune was engraved on them, its center shimmering with dazzling light, echoing the spiritual energy fluctuations they sensed.

“This temple looks ancient; there must be important clues hidden inside,” Ye Yuanchen said, stepping forward to carefully examine the runes on the door.

After some research, they discovered that the rune was an ancient seal that required a specific power to open. And this power seemed to be closely related to each person's spiritual attribute and cultivation method.

Following the instructions of the runes, Ye Yuanchen, Mu Wanyue, Lu Zixuan, and Bai Youruo stood in different positions and poured their spiritual power into the runes on the door. As they poured their spiritual power in, the light on the runes grew brighter and brighter, and the door slowly opened, releasing a powerful surge of spiritual energy.

The temple's interior was spacious and bright, with ancient scrolls hanging on the walls depicting blurry scenes that seemed to foreshadow future disasters and crises. In the center of the temple stood a huge crystal ball, within which floated an ancient book radiating golden light.

Ye Yuanchen stepped forward and gently picked up the ancient book. The cover bore the four large characters "Spirit Realm Heavenly Book," the script ancient and mysterious, radiating a powerful aura. As he opened the first page, a beam of light shot out from the book, directly entering his mind, and a flood of information poured into it.

It turns out that this "Spirit Realm Heavenly Book" is a mysterious ancient book that records the future fate of the Spirit Realm and even the Three Realms. The book prophesies that in the near future, the Three Realms will face an unprecedented crisis, more severe than any before, and may even lead to the destruction of the Three Realms. Ye Yuanchen and his companions are the chosen saviors, and they must shoulder the heavy responsibility of finding a way to save the Three Realms, embarking on a journey full of hardships and challenges.

"It seems we have a new mission." Ye Yuanchen closed the ancient book, his eyes revealing unwavering determination and fearless courage. "No matter how many difficulties and obstacles lie ahead, we must forge ahead bravely, at any cost, for the future of the Three Realms!"

Mu Wanyue, Lu Zixuan, and Bai Youruo also expressed their willingness to face this unknown challenge alongside Ye Yuanchen. They knew it would be a long and arduous battle, but they would not back down, for they were the guardians of the Three Realms, and protecting the peace and tranquility of the Three Realms was their inescapable responsibility.

And so, guided by the "Spirit Realm Heavenly Book," Ye Yuanchen and his companions embarked on a new journey. What challenges and crises would they face? And would they be able to successfully save the Three Realms? Everything was uncertain, but their faith and determination would shine like brilliant stars, illuminating their path forward.