The Immortal Physician's Transmigration: Miraculous Rejuvenation

Ye Yuanchen and his companions overcame numerous obstacles and finally approached the location of the Heart of the Three Realms, which was protected by restrictions. However, the scene before them made their hearts sink.

In a chaotic void, the Heart of the Three Realms floated in the center, resembling a gigantic crystal sphere radiating a ghostly blue light. Energy surged within the sphere, seemingly containing the mysteries of the universe's primordial beginnings. However, surrounding the sphere were layers upon layers of vortexes of dark power. These vortexes, like giant black pythons, intertwined and entwined, constantly eroding the pure light emanating from the sphere. Each vortex exuded a terrifying aura capable of destroying everything.

"This dark power is so rampant, attempting to devour the heart of the Three Realms." Ye Yuanchen frowned, his eyes revealing solemnity and determination. He knew that if he couldn't stop it in time, the Three Realms would be plunged into an abyss of darkness, doomed forever.

Mu Wanyue gripped the Spirit Whip tightly; its pink blade stood out starkly in the darkness. She gritted her teeth and said, "We must not let it succeed. We must act as soon as possible."

Lu Zixuan quickly began to probe the surroundings, the magic weapon in his hand flashing with light. However, after a moment, his expression turned extremely ugly: "The defense of this dark power is beyond imagination. My detection magic weapon can hardly penetrate it. Forcing a breakthrough will probably trigger its crazy backlash."

Bai Youruo began to play the Lingxu Lingyin Flute, its notes struggling to travel through the void, attempting to find a weak point in the dark power. But the notes seemed to sink into the sea, easily swallowed up by the dark power, leaving only slight ripples.

“This can’t go on; we need to think of another way.” Ye Yuanchen pondered for a moment, then suddenly remembered an ancient secret technique he had seen in ancient texts of the Spirit Realm that could fuse the spiritual power of everyone into one, unleashing power far beyond the ordinary. “Perhaps we can try to use the Spirit Realm Unity Secret Technique, concentrate our power to tear open a gap, and reach the heart of the Three Realms.”

Upon hearing this, everyone nodded. They formed a circle, each extending their palms towards each other. Ye Yuanchen took the lead in channeling his spiritual energy, the Spirit Void Holy Sword hovering above his head, radiating a dazzling golden light. Mu Wanyue's Spirit Void Whip coiled around everyone's arms, its pink and golden light blending together. Lu Zixuan then set up a simple spiritual energy guiding array on the ground to ensure stable transmission of spiritual energy. Bai Youruo played her spiritual flute, the notes transforming into an invisible bond connecting everyone's soul power.

As the secret technique was performed, everyone's spiritual power gradually converged, and a huge, colorful ball of light formed in their hands. The ball of light grew larger and larger, its radiance becoming increasingly intense, and the surrounding space began to distort and deform due to this powerful force.

"Now! Charge!" Ye Yuanchen shouted, and everyone worked together to push the ball of light towards the vortex of dark power. Like a blazing meteor, the ball of light streaked through the dark void, colliding violently with the vortex of dark power. In an instant, light and darkness intertwined, erupting in a deafening roar. Powerful energy waves spread outwards, as if space itself had been torn apart by countless tiny cracks.

Under the impact of this powerful force, the vortex of dark energy briefly loosened. Ye Yuanchen seized the opportunity, his figure flashing like lightning as he rushed towards the gap. Mu Wanyue, Lu Zixuan, and Bai Youruo followed closely behind, struggling to move forward through the gap in the dark energy, enduring immense pressure with each step.

However, the dark forces quickly realized their intentions, and the vortex began to recombine, unleashing bolts of black lightning towards them. Ye Yuanchen wielded the Spirit Void Holy Sword, deflecting the lightning bolts one by one, but the powerful impact still caused his body to sway continuously.

"Hold on, everyone, we're almost there!" Ye Yuanchen shouted, his voice echoing in the darkness, full of determination and encouragement.

Just as they were about to reach the Heart of the Three Realms, a massive dark barrier suddenly appeared before them. This barrier was like a black city wall, indestructible, and exuded an aura of despair.

"What is this?" Mu Wanyue looked at the barrier in despair, a sense of powerlessness welling up in her heart.

Lu Zixuan stepped forward for a closer look and discovered that the barrier was covered with complex dark runes. "These are the core sealing runes of dark power. Only by deciphering these runes can we pass through."

Bai Youruo played her spirit flute, attempting to disrupt the runes' operation with the power of the music, but to little avail. Ye Yuanchen, on the other hand, pressed the Spirit Void Holy Sword against the barrier, unleashing his full spiritual power in an attempt to force a breakthrough. However, the barrier remained unmoved, instead reflecting his spiritual power back at him, causing him to cough up blood.

"It seems that forcing our way through won't work. We need to decipher these runes and find a way to break through," Lu Zixuan said calmly. He took out various magical artifacts and ancient books from his storage treasure and began to study the runes on the barrier.

Mu Wanyue and Bai Youruo stood guard beside him, wary of attacks from the dark forces. Ye Yuanchen sat to the side, tending to his injuries and recovering his spiritual energy.

After arduous research, Lu Zixuan finally discovered the pattern in the runes. "These runes require a specific spiritual energy frequency to decipher. We need to adjust our spiritual energy output, following this sequence..."

Following Lu Zixuan's instructions, everyone readjusted their spiritual energy and then slowly poured it into the barrier. As the spiritual energy was poured in, the runes on the barrier began to flicker, and the light grew stronger and stronger.

Suddenly, a portal appeared in the barrier. Ye Yuanchen and the others rushed in without hesitation.

After entering the portal, they finally arrived before the Heart of the Three Realms. The Heart of the Three Realms emitted a gentle light, a light that seemed to possess a healing power, soothing their weary bodies and minds.

"We've finally found it," Ye Yuanchen said excitedly, reaching out his hand to touch the Heart of the Three Realms.

Just as his hand was about to touch the Heart of the Three Realms, a dark shadow darted out from the side; it was the embodiment of dark power. This embodiment resembled a demon, its entire body shrouded in black flames, its eyes flashing with an evil red light.

"Do you think you can obtain the Heart of the Three Realms so easily? You're too naive!" The dark avatar let out a burst of wild laughter, then pounced on Ye Yuanchen.

Ye Yuanchen hurriedly drew his sword to defend himself, and Mu Wanyue, Lu Zixuan, and Bai Youruo quickly joined the battle. They unleashed their respective special skills, engaging in a thrilling and intense battle with the incarnation of darkness.

Ye Yuanchen wielded his Spirit Void Holy Sword with impenetrable precision, each strike imbued with powerful spiritual energy, aiming for the vital points of the Dark Avatar. Mu Wanyue's Spirit Void Whip danced in the air like a pink lightning bolt, lashing at the Dark Avatar's body. Lu Zixuan set up an array to trap the Dark Avatar, restricting its movements. Bai Youruo played her Spirit Melody Flute, the notes transforming into a powerful soul-piercing force, attacking the Dark Avatar's soul core.

However, the power of the Dark Avatar was extremely strong. It charged left and right within the formation, easily breaking free from the entanglement of the spirit whip, neutralizing Ye Yuanchen's attacks one by one, and occasionally unleashing black flame attacks, leaving everyone exhausted from dealing with it.

"At this rate, we're no match for it. We must find a way to defeat it completely." Ye Yuanchen thought of a solution while parrying the attacks.

Suddenly, an idea struck him, and he thought of the Key to the Spirit Realm. He took out the Key to the Spirit Realm, fused it with his spiritual power, and then thrust it towards the dark avatar. With the infusion of spiritual power, the Key to the Spirit Realm shone brightly, radiating a powerful purifying force.

The Dark Avatar sensed the threat of the Spirit Key and tried to evade, but it was too late. The Spirit Key pierced the Dark Avatar's core, and a powerful purifying force erupted instantly, engulfing the Dark Avatar. The Dark Avatar let out a painful roar, and its body began to gradually dissipate.

As the dark avatar dissipated, the light of the Heart of the Three Realms suddenly intensified, enveloping Ye Yuanchen and the others. They felt a powerful force surge into their bodies, instantly healing their injuries and greatly enhancing their spiritual power.

"This is the power bestowed upon us by the Heart of the Three Realms. We must make good use of it to completely eliminate the forces of darkness," Ye Yuanchen said.

With the power bestowed upon them by the Heart of the Three Realms, they left this chaotic void, preparing for the final battle against the forces of darkness, fighting for the peace and tranquility of the Three Realms.