The Source of the Withering Virus and the Awakening of the Heart of the Void

[System notification: Main quest "Purify the Withering Virus" activated. Objective: Venture deep inside the Void Mother Core and destroy the source of the virus, "the energy core left behind by the otherworldly colonizers," to stop the virus from spreading. Time limit: 48 hours. Rewards: Unlock the "Void Energy Purification" ability; the team receives the "Mother Core Guardian Mark." Failure penalty: The Void Mother Core will wither completely, the void beast horde will run out of control, and all symbiotes will suffer a backlash from the virus.]

Chapter 1: The Mother Core's "Energy-Eroding Corridor"

The instant the energy cocoon broke apart, a gentle force pushed everyone inside the Void Mother Core. The place resembled a maze made of countless glowing blood vessels. Pale purple energy fluid flowed through their walls, which pulsed warmly to the touch, as though they were inside a giant heart.

"The detector shows that the source of the virus is in the 'core chamber' at the very depths of the mother core, but the corridor leading there has been severely corroded by the virus." Lu Mu held up his instrument, its screen crisscrossed with red warning lines like a spiderweb. "These energy-eroding areas will drain Dou Qi dry. They can even reduce the temperature of the Dragon Phoenix Flame by thirty percent."

The Dragon Phoenix Flame danced in Zi Yan's palm, its light indeed dimmer than before. "No wonder it was so hard to burn the ice poison just now. This place was suppressing energy." She flicked her tail, her dragon scales gleaming gold and red in the light from the vessel walls. "Xiao Yan, can your Elemental Core neutralize this suppression?"

Xiao Yan gathered a ball of five-colored light at his fingertip and touched it to an energy-eroded patch of the wall. The light instantly turned gray-black. "It can, but it takes a lot out of me." He looked at Wu Hao. "Can spatial rifts block the energy erosion?"

Wu Hao swung the Space-Splitting Axe, its blade passing over the vessel wall and tearing open a fleeting rift. "I can only maintain one for five seconds, and the edges get corroded by the energy erosion." He pointed ahead. The corridor suddenly turned at a right angle, and the vessel wall at the corner had already turned gray-black. A faint sizzling of corrosion could be heard. "The area ahead is the worst hit by the energy erosion."

[System notification: Encountered "Energy-Eroding Virus Swarm" (level: Peak Dou Wang). Traits: Gathers into gray-black slime and spreads by clinging to surfaces; contact slowly corrodes energy cores. High temperatures or spatial energy are required to remove it.]

Zi Yan took a deep breath, and the Dragon Phoenix Flame surged. "I'll clear the way. Follow me!" The flames formed a wall of fire before her, burning the energy-eroding slime into black smoke, but the edges of the fire wall also dimmed rapidly. Wu Hao followed close behind, cleaving open a spatial rift every three steps to sweep the remaining slime into the void. Xiao Yan used the Elemental Core's energy to reinforce everyone's shields and prevent the energy erosion from seeping through.

Lu Mu suddenly pointed at a small hole in the vessel wall. "Look here! There's an uncorroded passage, just wide enough for one person. We can use it to go around the energy-eroded area ahead!" A soft white light shone from the hole, matching the mother core's energy fluctuations.

Xiao Yan leaned in for a look. "It's one of the mother core's self-healing passages. It should be safe. Zi Yan, withdraw your flames. We'll go through here."

The instant they crawled into the passage, the suppressive effect of the energy erosion vanished. The inner walls were covered in tiny tendrils that tickled as they brushed against their skin. Lu Mu's detector suddenly beeped. "Life fluctuations detected! They're guardian beast young, trapped in here!"

A spherical space lay at the end of the passage. Dozens of palm-sized void beast young huddled in a corner, their tendrils lusterless and their bodies translucent. They had clearly been tormented by the energy erosion for a long time. When they saw the group, the young beasts let out faint little chirps, as though pleading for help.

[System notification: Side quest "Rescue the Void Beast Young" triggered. Reward: The young beasts will guide the group around the traps in the core chamber.]

Zi Yan carefully cupped one of the young beasts in her hands. It immediately wrapped its tendrils around her finger, and its icy touch made her heart melt. "They're so pitiful. We have to take them with us." Xiao Yan took out the Origin Crystal Core Fragment, bathing the young beasts in its light. Their bodies gradually grew solid. "The fragment can temporarily purify the energy erosion. We'll carry them with energy."

Lifted by energy, the young beasts followed the group like a string of glowing grapes. The one at the front suddenly stopped, pointed its tendrils toward a fork on the left, and let out urgent cries. Lu Mu's detector showed that the concentration of energy erosion on the main path to the right was ten times higher than on the left.

"Looks like the little ones know a shortcut." Xiao Yan smiled. "Let's follow them."

Chapter 2: The "Colonizers' Remains" in the Core Chamber

After they passed through the fork, the space before them suddenly opened up. The core chamber was a circular space a hundred meters across. A black crystal the size of a basketball floated at its center, its surface covered in intricate runes. It was the energy core left behind by the otherworldly colonizers. Countless gray-black energy-eroding tendrils coiled around the crystal, rooted in the Void Mother Core's blood vessels and drawing energy from them like straws.

Many broken metal fragments lay scattered throughout the space, engraved with the same runes as the crystal. Lu Mu picked one up. "The detector says these are pieces of the Void Plunderers' armor. Three hundred years ago, they used this 'Energy-Devouring Core' to contaminate the mother core."

[System notification: Encountered "Energy-Devouring Core" (level: Peak Dou Emperor). Traits: Continuously releases the Withering Virus; can absorb surrounding energy and convert it into energy-eroding attacks. Its weakness is the white runes on the core's surface-the colonizers' energy mark and the virus's control center.]

"The white runes..." Xiao Yan stared at the black crystal. The runes flickered in and out of sight beneath the energy erosion. "Zi Yan, can you burn away the energy erosion with the Dragon Phoenix Flame and expose the runes?"

Zi Yan spread her wings, and the Dragon Phoenix Flame became a fiery tornado that swept toward the Energy-Devouring Core. The flames struck the energy-eroding tendrils with a sizzle, burning through quite a few of them, but the energy erosion on the core's surface quickly grew new tendrils, concealing the white runes once more.

"It won't work. The energy erosion regenerates too fast!" Zi Yan caught her breath, the light of her flames dimming a little further. "This thing's like a sponge. It sucks up my energy the moment it touches it."

Wu Hao suddenly swung his axe and chopped through an incoming tendril. "Xiao Yan, try the Elemental Core's energy! The Origin Crystal Core Fragment can purify the energy erosion, so it might be able to counter it!"

Xiao Yan tossed the fragment into the air and formed hand seals, sending five-colored energy through the fragment and into the Energy-Devouring Core. Sure enough, the energy-eroding tendrils rapidly dissolved upon touching the five-colored light, and the white runes on the core's surface gradually came into view. They twisted and intertwined to form a giant character meaning "imprison"-the very mark the colonizers had used to confine the mother core.

"Now!" Lin Xiuya's sword suddenly left its sheath, its light like a bolt of silk as it shot toward the center of the runes. "Lu Mu, find the weak point in the runes!"

Lu Mu's detector whirred rapidly. "At the upper right of the 'imprison' character! The runic energy fluctuations are weakest there!"

Lin Xiuya's sword struck the weak point with perfect accuracy. The runes gave an ear-piercing hum, and a crack appeared. But immediately afterward, the Energy-Devouring Core suddenly erupted with fierce black light, and countless energy-eroding tendrils shot out like venomous snakes, sweeping toward the group!

[System notification: The Energy-Devouring Core has entered a berserk state. Energy-eroding attack strength increased by 50%!]

Chapter 3: The Young Beasts Strike Back and Energy Resonance

The energy-eroding tendrils were incredibly fast. Xiao Yan's Elemental Core shield shook violently under their assault, and tendrils wrapped around Zi Yan's Dragon Phoenix Flame, snuffing out half of it in an instant. Wu Hao swung the Space-Splitting Axe again and again, but could barely fend off the tendrils in front of him, leaving him no chance to help anyone else.

"Chirp, chirp-!" The void beast young following behind them suddenly let out piercing cries. Their tendrils lit up with white light all at once, firing tiny beams of energy at the Energy-Devouring Core. The beams looked feeble, but when they struck the tendrils, they corroded little holes in them like strong acid.

"They're helping us!" Both surprised and delighted, Zi Yan immediately gathered her flames again. "The young beasts' energy can counter the energy erosion!"

Realization dawned on Xiao Yan. "Void beasts are part of the mother core to begin with. Their energy comes from the same source, so of course it can fight an invasive virus!" He shouted to the young beasts, "Focus your attacks on the white runes on the core!"

The young beasts understood him. Their beams converged into a pillar of white light that slammed into the crack in the "imprison" rune. The rune trembled violently, and the black light dimmed considerably in an instant.

Lu Mu seized the chance to press his detector against the vessel wall. "The mother core is responding to the young beasts! Its energy is surging this way!" The Void Mother Core's blood vessels suddenly lit up, and pale purple energy fluid flowed along their walls into the core chamber, forming a giant energy array beneath everyone's feet.

[System notification: Energy resonance established between the Void Mother Core and the young beasts. The team has gained the "Mother Core Blessing" status-all attacks carry void energy, and damage against energy erosion is increased by 100%!]

"What a chance!" Lin Xiuya's sword, wreathed in pale purple energy, stabbed at the crack in the rune again. This time, the blade sank in half an inch. The Energy-Devouring Core let out a howl of pain, and red liquid seeped from the black light, as though it were bleeding.

"It's fighting back!" Wu Hao's Space-Splitting Axe was also coated in a layer of purple. He leaped up and brought it down on the side of the core. "Xiao Yan, Zi Yan, let's attack the crack together!"

The Elemental Core's energy resonated with the mother core and became a giant five-colored hammer; Zi Yan's Dragon Phoenix Flame merged with the purple energy and became a gold-and-red spear of fire. The three struck at once, crashing into the crack in the rune. With a snap, the crack widened to the width of a fist, revealing an inner core flickering with silver light.

[System notification: The Energy-Devouring Core's outer layer is about to break. Viral activity decreased by 30%!]

Chapter 4: The Colonizer's Remnant Soul and the Truth

Just as the core's outer layer was about to shatter, a black shadow suddenly emerged from the crack. It condensed into a human figure clad in battered armor, with a sinister mask covering its face.

"Foolish natives." The shadow's voice sounded like rusty scraps of iron grating together. "Three hundred years, and you're still so easily stirred up."

[System notification: Encountered "Colonizer's Remnant Soul" (level: Early-Stage Dou Zong). Traits: Can control energy erosion to attack; immune to physical damage. Spiritual strength and elemental energy are required to defeat it.]

"Who are you?" Xiao Yan gripped the Elemental Core tightly, five-colored light flowing around him. "The colonizers were driven out of the Void Beast Nest long ago. How are you still here?"

The shadow gave a grating laugh. "I was a vanguard officer of the Void Plunderers. Back then, I perished together with the mother core, and my remnant soul took refuge in the Energy-Devouring Core. I meant to wait until the mother core withered, then seize a body and be reborn. I never expected a bunch of brats like you to ruin my plans."

He raised a hand, and the energy-eroding tendrils suddenly turned incomparably violent, flooding half the core chamber like a tide. Zi Yan's Dragon Phoenix Flame was completely suppressed, and Wu Hao's spatial rifts filled with energy erosion as soon as they opened.

"Have a taste of being devoured by energy erosion!" The vanguard officer's mask cracked, revealing the hollow eye sockets beneath. "This is a 'delicacy' we refined from the lives of countless planets!"

Lu Mu suddenly shouted, "He's lying! The detector shows that the energy erosion is mixed with a huge amount of negative emotional energy-fear, pain, despair... He's using it to strengthen the energy erosion!"

An idea flashed through Xiao Yan's mind. "If the young beasts can purify energy erosion, they can purify negative emotions too! Little ones, surround him with your energy!"

The void beast young chirped again, and their white energy formed a sphere around the vanguard officer's remnant soul. The soul struggled madly inside, and energy-eroding tendrils battered the sphere, only to dissolve in the white light.

"Impossible! How could these lowly creatures possibly..." The vanguard officer's voice grew weaker and weaker, and his mask gradually melted, revealing a twisted face-a human face, its eyes full of greed.

"Plundering other planets wasn't enough for you. You even wanted to seize the Void Beast Nest's mother core." Xiao Yan's voice was icy. "Today, I'll make you disappear for good." He fused the Elemental Core with his spiritual strength, forming a transparent longsword. "Zi Yan, set my sword alight with the Dragon Phoenix Flame!"

Gold-and-red flames wrapped around the transparent longsword. Xiao Yan leaped up and thrust it through the energy sphere. The vanguard officer's remnant soul let out a bloodcurdling scream, its body dissolving like ice and snow until all that remained was a wisp of black smoke, which the young beasts' energy purified completely.

[System notification: Colonizer's remnant soul slain. The Energy-Devouring Core has lost its controller. Viral activity decreased by 80%!]

Chapter 5: Purifying the Core and the True Meaning of Symbiosis

After the vanguard officer vanished, the Energy-Devouring Core's black light went out completely, leaving only its cracked shell. Xiao Yan, Zi Yan, and Wu Hao joined forces once more and finally shattered the core's outer layer, revealing the silver inner core-a pure energy crystal engraved with the Void Beast Nest's ancient runes.

"This is the mother core's original core." Lu Mu stroked the crystal. "The colonizers encased it in the Energy-Devouring Core, causing the mother core to wither."

Xiao Yan pressed the Origin Crystal Core Fragment against the silver crystal. The instant the fragment merged with it, the entire Void Mother Core began to tremble violently. The blood vessels in the core chamber contracted, drawing all the remaining energy erosion and virus into their depths before expelling them from the body. The expelled waste became a black meteor shower that shot out of the Void Beast Nest and burned to nothing in the starry sky.

[System notification: Withering Virus eliminated. The Void Mother Core has begun to heal itself! Main quest complete!]

The void beast young chirped happily as they flew around the core chamber. The guardian beasts came through the passage and gently touched the silver crystal with their tendrils. The mother core's light grew brighter and brighter, illuminating the entire space as though it were daytime.

Xiao Yan felt a heat between his brows, and a mark made of purple runes appeared-the Mother Core Guardian Mark. He looked at the others and saw that each of them had the same mark between their brows.

[System notification: The team has received the "Mother Core Guardian Mark," granting free passage in and out of the Void Beast Nest and the ability to draw on a small amount of void energy. "Void Energy Purification" ability unlocked; it can remove low-level energy-eroding viruses.]

Lu Mu's detector suddenly received a message: footage from three hundred years ago. In it, the young guardian beast leader fought a fierce battle with the colonizers' vanguard officer, finally holding him tight and crashing into the Energy-Devouring Core with him. As it turned out, the guardian beast had given its life to seal away the virus and stop it from spreading.

"No wonder the guardian beasts have been protecting the mother core all this time." Zi Yan watched the footage, her eyes growing moist. "They're carrying out their companion's dying wish."

Xiao Yan gazed at the silver core and suddenly understood the true meaning of symbiosis: it was not one side taking or giving, but both protecting each other and growing together. The Void Mother Core provided energy, and the void beasts protected it; they had helped the mother core eliminate the virus, and the mother core had given them new power in return.

[System notification: The crisis in the Void Beast Nest has been resolved. All void beasts' favorability toward the team has reached "Revered." Next plane of exploration: "Starfall Pavilion Ruins." Preparing for teleportation...]

The young beasts pushed the group toward the passage with their tendrils. A sparkling crystal hung from the guardian beast leader's tendril, and the leader held it out to Xiao Yan. Lu Mu's detector showed: "This is the 'Heart of the Void.' It can locate every purified plane and is the best medium for teleportation."

Xiao Yan accepted the Heart of the Void, and it became a ring in his palm. He looked back at the mother core, now coming to life again, and a smile lifted the corners of his mouth. "Let's go. A new plane is waiting for us."

The group followed the young beasts through the passage. Behind them, the silver crystal in the core chamber shone brighter and brighter, and in the Void Beast Nest's nebula, the first new star began to shine-the hope nurtured by the mother core.