I cut through the cavern air, my massive blood wings beating in a tight, aggressive circular motion. The tight bio-slime bodysuit offered zero wind resistance, making my flight sharper and faster than ever before. Down below, the searing beam of pure light from the Slime King was carving a molten scar across the cavern floor, but my focus was divided… I had to clear the airspace so Evelyn wouldn't get swarmed while executing her counter-maneuver.
BANG! BANG! BANG! BANG!
I fired in rhythm with the downbeat of my wings, shredding a cluster of eight diving slimes into glowing vapor.
Clack-clack!
I reloaded with one hand using a practiced, violent flick of the shotgun, immediately targeting the next cluster. Another eight slimes vaporized into acidic mist.
Clack-clack!
I completed the loop, my lone jade-green eye tracking the remaining aerial threats. One final, devastating spread of buckshot tore through the last group.
In a matter of seconds, twenty-four bio-slimes were entirely erased from the air, and the incoming wave of lifesteal magic surged through my body, completely cementing the regeneration of my intestines. The internal pain was entirely gone.
As I banked hard in mid-air to begin another pass, the booming telepathic voice of the Slime King and Evelyn's fierce screams echoed violently across the massive treasury chamber. They were locked in a desperate, final argument as they traded blows.
"Guardian! you dare turn your fangs against the collective? I raised you from infancy! I gave you purpose! I made you the apex predator of this ravine!" the Slime King bellowed, his voice dropping into a manipulative, vibrating drone that tried to force compliance back into her neural pathways.
"You didn't raise me, you parasite! You kept me in a cage! You fed on my mother's flesh and tried to make me forget her! You're not my master… you're just a virus!"
Evelyn's voice rang out, full of absolute defiance and the righteous fury of a six-year-old child who finally understood what had been stolen from her.
BOOM! BOOM! BOOM! BOOM!
Evelyn didn't just talk; she acted. While hovering in mid-air, her blue-green slime wings flared, and she fired a relentless, rapid-fire barrage of kinetic shockwaves paired with her innate Explosion Magic. Every single shot hit the two-story-tall blob with pinpoint, tactical precision, tearing into his glowing core and actively disrupting the focus he needed to maintain that devastating light-beam laser. The cavern wall trembled under the sheer concussive force of her assault, and the King of Slimes let out a telepathic shriek of genuine agony as my baby sister systematically ripped his defenses apart.
While Evelyn relentlessly hammered the core of the giant parasite, I stayed true to my role as the older sister, executing the clean-up with lethal, mechanical precision. Flying in a fierce, sweeping orbit around the upper reaches of the cavern, I systematically pumped and fired the Death Chant Shotgun until every single one of the deployed bio-slimes was entirely vaporized into a harmless, glowing mist. The air was finally clear.
With the minor threats eradicated, I shifted my focus entirely to the main event.
My massive, bat-like blood wings snapped back, and I lunged through the air, diving directly toward the two-story-tall King of the Slimes. Bracing the shotgun against my shoulder with my single right hand, I fired multiple heavy rounds directly into his translucent, pulsating mass.
BANG! BANG! BANG!
The high-density buckshot tore into his membrane, causing the colossal entity to let out a telepathic shriek of genuine agony. But the monster wasn't dead. His glowing form hyper-oscillated, and his booming voice mocked us both, echoing directly inside our skulls.
"Pathetic insects! You think a few flesh wounds can destroy the hive?"
Through the massive, gaping holes Evelyn's explosion magic had blasted into his body, the Slime King began to charge his core once more, violently leaking blinding, erratic beams of pure, incinerating light right at us.
Because I had never fought an apex bio-slime of this magnitude before, I was shooting blindly, simply aiming for his largest mass without any knowledge of where his vital nucleus was hidden. But Evelyn was different.
She had spent all six years of her rapid-growth life in the pitch-black depths of this very cave. She had watched him breathe, watched him feed, and possessed the tactical military knowledge of every elite knight she had ever devoured. She knew every single microscopic flaw in his defenses.
As the seared light-beams sliced through the air, melting the gemstone walls around us, my little sister locked her twin jade-green eyes onto his pulsing center, her core humming a lethal, final frequency. She knew exactly where to strike.
Before I could pull the trigger of my shotgun for another blind shot, Evelyn made her move.
The biological chest core behind her translucent latex-like bodysuit flared with a blinding, absolute brilliance. Wielding her super-intelligent tactical precision, she didn't waste power on a broad blast. She funneled every single ounce of her high-tier Explosion Magic and Reinforced Mana into two highly concentrated, hyper-pressurized kinetic lances, aiming dead-center at the microscopic nucleus she had tracked for six years.
BOOM! BOOM!
The twin kinetic blasts hit the Slime King's absolute center with devastating force. The impact was so precise it bypassed his dense outer membrane entirely, detonating directly inside his vital nucleus.
Instantly, the blinding, chaotic beams of light leaking from his form snapped. The two-story-tall colossal blob began to hyper-inflate, the brilliant illuminating light within him rapidly fading into a dull, sickening grey. The King of the Slimes let out one final, distorted telepathic shriek that echoed like shattering glass inside our skulls:
"The hive... cannot... perish by the hands of its own weapon..."
Then, he detonated.
The death of a building-sized apex parasite didn't just cause a standard blast; it released a massive, catastrophic kinetic shockwave that tore through the underground cathedral. The air pressure violently slammed outward, ripping thousands of immaculate gems from the cavern walls and throwing a hurricane of boiling, dead slime residue in every direction.
Acting on pure, survival instinct, I snapped my massive, bat-like blood wings tightly around my true, single-eyed body, forming a dense crimson shield. The sheer force of the shockwave caught me in mid-air, blasting my wrapped form completely across the treasury chamber until I crashed hard into a massive, jagged outcropping of raw diamond. The crystalline structure cracked under the impact, but my wings absorbed the worst of the concussive blow.
Evelyn, however, didn't flinch or yield an inch.
Standing right at the epicenter of the blast, her twin jade-green eyes flashed with absolute defiance. In the millisecond before the shockwave could tear her apart, she activated her flawless Reinforced Mana barrier. The crystalline fortress shield materialized around her 5'3" frame, glowing with a fierce blue-green light as the massive wall of kinetic destruction washed over it, splitting around her like water against a cliffside.
As the deafening roar of the explosion slowly died down, leaving nothing but smoke, raining gold dust, and the silence of a broken curse, I unfurled my blood wings from the diamond pillar. The Master was dead. The fourth and fifth mineshafts were finally free.
The violent impact against the raw diamond pillar knocked the breath from my lungs, and my wrapped, single-eyed body slid down the cracked crystalline surface onto the stone floor.
Seeing me get thrown entirely across the Treasury cavern, Evelyn's protective instincts instantly flared.
"Big sister! Eirene!" she screamed, her voice echoing through the settling smoke.
Without a second of hesitation, she unfurled her translucent blue-green slime wings and took flight, cutting through the raining gold dust and chaotic air currents like a streak of light. She landed gracefully right in front of me just as the heavy smog from the Master's detonation finally began to drift away.
Evelyn dropped to her knees beside me, her twin jade-green eyes wide with frantic concern as she scanned my tanned, scarred face, my Glasgow smile, and my lone remaining eye.
"Big sister, are you okay?" she gasped, her hands hovering over my bodysuit, terrified that the shockwave had reopened my internal injuries.
I looked up at her, and despite the missing tongue preventing me from speaking, the jagged lines of my Glasgow smile softened into a genuine, warm, and loving expression. I gave her a slow, reassuring nod, flexing my right hand around the grip of my shotgun. The lifesteal had done its job perfectly; my intestines were completely whole, and the impact against the diamond had only bruised my pride. I was perfectly okay.
Seeing my silent smile, the final walls around Evelyn's traumatized, six-year-old soul completely disintegrated. The heavy, suffocating burden of the hive-mind, the guilt of the past six years, and the ghost of the monster that had raised her were all utterly vaporized along with the Slime King.
She threw her arms around my neck, burying her face into my shoulder as bioluminescent slime tears freely poured down her cheeks once more. But these weren't tears of horror or pain… they were tears of absolute deliverance.
"I am free… I'm finally free, Eirene... Let's go home."
She sobbed, her voice a beautiful, emotional release that echoed in the quiet, glittering vault. I wrapped my lone right arm tightly around her 5'3" frame, my massive, crimson blood wings gently folding around both of us in the quiet cavern. The gold mines were clear, the kingdom's curse was broken, and against all impossible odds, the youngest sibling of the Rynd household was finally bringing her little sister back to the surface.