The brass cylinder overhead gave a sickening, metallic screech as its outer housing split down the middle, revealing a core of compressed violet plasma that throbbed like a dying star.

The heat was immediate and devastating. The air around Meilin instantly turned to ozone, scorching her lungs with every frantic breath. On the platform, Model 0-B didn’t hesitate. Ignoring Eleanor’s threat, the prototype threw his weight sideways, diving for the edge of the pit just as a blinding arc of electricity slammed into the grating where he had been kneeling a second before.

The blast wave threw Meilin backward. Her wrists, still bound together by the magnetic cuffs, slammed against the iron base of the central pillar. Above her, Eleanor opened fire. The silenced submachine gun coughed in rapid, rhythmic bursts, the rounds chewing through the rock face directly above the hovering helicopter.

«Get up, Meilin!» Eleanor screamed over the deafening hum of the core. She cast a brief, desperate glance over her shoulder toward the upper tunnel. «The blast dampeners aren’t going to hold! He set the core to overload the moment the primary sequence hit zero!»

«Who set it?!» Meilin yelled back, scrambling to her feet as the floor beneath her tilted violently. The churning violet water in the basin below was rising, swallowing the bundle cables one by one, sending plumes of scalding steam shooting up through the floorboards. «Julian or Vance?!»

«Neither!» Eleanor pulled a heavy grapnel launcher from her coat, aiming it down into the pit. «Julian was trying to drain the power before you arrived! It was you, Meilin! You set the fail-safe six years ago before we wiped your mind!»

The words hit Meilin harder than the shockwave.

She froze, her fingers clawing at the icy brass cylinder at her chest. Six years ago. The lab fire. The glowing blue vial. The memory of her holding the match wasn’t a fabrication—it was a suppressed truth.

Before she could process the revelation, a heavy iron cable snapped above them with the sound of a gunshot. The entire sub-deck dropped three feet, pitching Meilin toward the edge of the rising, violent liquid.

She grabbed the edge of the grating with her bonded hands, her boots dangling over the churning violet pool. The fluid roared, sending up droplets that burned through the leather of her boots instantly. Ten feet away, Model 0-B was scrambling up the sheer rock face with unnerving, mechanical efficiency, his fingers bleeding as he dug them into the jagged granite.

«You can’t stop it!» the prototype shouted down over the roar of the core, his luminous blue eyes glowing fiercely in the cavern’s gloom. «The heart wants to return to the origin! If you don’t cut it out of her, the whole island goes under!»

«Shut your mouth!» Eleanor snarled. She fired the grapnel.

The steel piton buried itself deep into the iron beam three feet from Meilin’s head. Eleanor grabbed the line and swung down into the pit, landing heavily on the tilting grating. She pulled a sleek, high-frequency arc-blade from her tactical belt, its edge glowing with a violent white hum.

Without a word of warning, Eleanor grabbed Meilin’s bound wrists and slammed the blade down between them.

Sparks showered over Meilin’s face as the arc-blade sliced through the magnetic cuffs like wet paper. The pressure vanished instantly, but before Meilin could pull away, Eleanor gripped her by the jacket collars, hauling her close until their foreheads almost touched. Up close, Meilin could see the fine, hairline scars tracing along Eleanor’s jawline—scars identical to the ones she had found behind her own ears three days ago.

«Listen to me,» Eleanor hissed, her voice trembling with an emotion Meilin had never heard from her before. «Julian didn’t betray you tonight. He took the master drive and ran because Dr. Vance has your original neural blueprint. If Vance uploads that file into the network, every prototype in the facility shuts down permanently—including you.»

Meilin pulled back, her eyes wide. «Including… me?»

«You aren’t the cure, Meilin,» Eleanor whispered, her eyes shining with unshed tears as the violet light reflected off her pale skin. «You were the first success. You are an synthetic organic.»

A low, deep groan reverberated through the bedrock beneath them, followed by the terrifying sound of snapping steel.

High above, the massive heavy-lift helicopter suddenly pitched sideways. A thick, dark spear of iron had erupted directly from the rock wall above the cave entrance, impaling the aircraft’s tail rotor. The helicopter spun wildly out of control, its blades chewing through the cavern ceiling in a spray of fire, concrete, and screaming metal, before plunging straight down toward the pit.

«Jump!» Eleanor roared, shoving Meilin toward the narrow maintenance ledge at the back of the chamber.

Meilin threw herself forward, her hands catching the narrow stone lip just as the helicopter slammed into the brass cylinder below.

The impact was cataclysmic. A wall of fire and liquid violet energy erupted in a blinding sphere, blasting the air out of Meilin’s lungs and throwing her deep into the darkness of the rear drainage tunnel.

She tumbled down a steep, slick stone shaft, hitting the ground hard, rolling over wet cobblestones until she slammed into a heavy wooden door at the end of the corridor.

Silence fell instantly, heavy and suffocating, broken only by the rhythmic, steady thump-thump of the brass compass still humming in her chest.

Meilin pushed herself up, coughing up a mouthful of copper-tasting blood. She was in a dimly lit, dry stone cellar. Torchlight flickered softly against the damp walls.

Standing in the center of the room, standing beside an old wooden workbench covered in dissembled clockwork parts, was Julian.

He wasn’t running. He wasn’t hiding. He was holding a leather-bound journal, his hands steady, waiting for her.

«I wondered if you’d take the rear chute,» Julian said softly, closing the book with a quiet thud. He didn’t look at her with fear or guilt—only a profound, crushing sorrow. «I’m sorry I had to drop you, Meilin. But Eleanor needed to believe you were trapped.»

Meilin pushed herself off the floor, her fist clenched, the brass heart beneath her skin pounding with a furious, burning heat. «She said I’m a machine, Julian. She said I was built.»

Julian took a slow step toward her, holding out his hands, palms up. «She lied to protect her own legacy. You aren’t a machine, Meilin. You’re something much worse.»

He reached into his coat, pulled out an old, yellowed photograph, and tossed it onto the workbench between them.

Meilin stepped closer and looked down.

The photograph showed a young Julian standing outside a grand medical facility in 1998. Standing beside him, holding a newborn baby wrapped in white linen, was Eleanor. But it wasn’t the baby that made Meilin’s blood run cold.

Lying on the gurney behind them, completely hollowed out, was the preserved, static body of Eleanor herself—dead for over thirty years.

«The woman standing upstairs isn’t your mother,» Julian whispered, his voice dropping to a terrifying chill. «She’s Model 0-0. And she’s been trying to replace you since the day you were born.»

Before Meilin could speak, the wooden door behind her blew inward with a violent, deafening crack.