The water swallowed him.
Aurelion dove after the sword, his lungs burning, his vision straining against the black. The shards on his back were heavy, dragging him down, but he didn't slow. He couldn't.
Gatekeeper.
I can't lose it.
I can't lose the shards.
I can't lose the answers.
The blade had fallen like a dying star, its crimson veins flickering once, twice, then gone. He watched it sink into the abyss, a faint glow that grew dimmer with each passing second.
He pushed harder.
The water pressed against him, cold and crushing. The pressure was immense, grinding against his suit, his bones, his will. Four thousand meters of ocean above him, pressing down with the weight of a world. His ears popped. His joints ached. The shards on his back hummed with a resonance that vibrated through his entire body.
Faster, he thought. Faster.
But the darkness was absolute. The cold was seeping through his suit, through his skin, into his blood. He could feel his limbs growing sluggish, his thoughts growing slow.
A shape moved in the darkness below—not the sword. Something larger. Something hungry.
The demon.
It was massive, its body covered in glistening scales that seemed to absorb the light. Its limbs were webbed, its jaws filled with rows of needle-sharp teeth that gleamed even in the black. It moved through the water like a shadow, like a nightmare, like something that had been hunting in the deep for millennia. Its eyes glowed with cold blue light—not the warm, hungry glow of the surface demons. These were ancient eyes. Patient eyes. Eyes that had watched cities rise and fall.
It circled him, slow and predatory, its glowing eyes fixed on him.
Aurelion's hand went to his belt. No backup weapon. No blade. Just the shards on his back and his own two hands.
Stupid, he thought. Stupid, stupid, stupid.
He swam past it.
The demon followed.
Aurelion felt its presence behind him—a weight in the water, a hunger in the dark. The cold blue light of its eyes pressed against his back like a physical force. It was toying with him. Testing him. Waiting for him to weaken.
He pushed harder, his arms burning, his lungs screaming for air. The shards on his back pulsed in rhythm with his heartbeat, a desperate, frantic rhythm.
There, he thought. There it is.
A faint glow in the distance. Crimson. Pulsing.
Gatekeeper.
It had landed on a rocky outcropping, its blade embedded in the stone. The crimson veins flickered weakly, barely visible in the gloom.
He swam toward it.
The demon accelerated.
It came from below—a surge of scales and claws and cold, terrible hunger. Aurelion twisted at the last second, the demon's claws raking across his side instead of his chest. The impact spun him through the water, disoriented, stunned.
Pain exploded through him. He felt the scales tear, felt the cold bite of the deep. Blood clouded the water around him, dark and thick, drifting upward like a crimson cloud.
But he didn't stop.
The demon lunged again. He dodged, rolling through the water, his hands reaching for the sword. His fingers brushed the hilt. Slipped. Grabbed.
His hand closed around it.
The demon's claws closed around his leg.
Pain.
Agony.
White-hot, searing pain that shot through his entire body. He felt the demon's grip tighten, felt its claws dig into his flesh, felt the cold water rushing into the wound. His vision went white. He heard himself scream—a muffled, watery sound that was swallowed by the deep.
The demon pulled him back, away from the sword. Its jaws opened wide, rows of needle-teeth gleaming in the dark.
Aurelion raised Gatekeeper.
The blade flared—not with crimson, but with white. Pure, blinding white. The light exploded outward, pushing back the darkness, pushing back the demon, pushing back everything. The water itself seemed to recoil, pressing away from the blade in a wave of pressure and light.
The demon screamed—not a sound, a pressure. A weight that pressed against his skull, his eyes, his soul. It released him and fled into the black, its tail thrashing, its body dissolving into the shadows.
Aurelion floated in the water, gasping, bleeding, alive.
Gatekeeper pulsed in his hand.
The light, he thought. It's not just a weapon.
It's a part of me.
He tried to swim upward.
His body didn't respond.
The wound on his leg was worse than he thought. The blood was flowing freely now, clouding the water around him, staining the sea red. His vision was starting to blur at the edges. His thoughts were growing slow, syrupy, wrong. The cold was seeping deeper, past his skin, into his bones, into his heart.
No, he thought. Not now. Not like this.
His arms moved weakly, barely propelling him upward. The darkness pressed in from all sides. The weight of the ocean was crushing him, squeezing the air from his lungs, the strength from his limbs.
He looked at the sword in his hand. The blade pulsed weakly, the white light dimming. The shards on his back hummed, but the sound was distant, fading.
And then he saw it.
Ahead of him, barely visible in the dim light, a crack in the seafloor. A crevice, wide enough to swim through. And beyond it—a pocket of air. He could see the surface shimmering, faint and distant, like a promise.
There, he thought. That's my way out.
He swam toward it.
The crack was narrow, barely wide enough for his shoulders. The shards on his back scraped against the stone, sending vibrations through his spine. He pushed through, ignoring the pain, ignoring the cold, ignoring the growing darkness at the edges of his vision.
The walls pressed against him, rough and jagged, scraping his suit, his skin. The water grew colder. The light grew dimmer. His lungs were burning, his chest heaving, his heart stuttering.
And then—air.
He broke the surface, gasping, choking, coughing up water. The air was cold and thin, but it was air. He dragged himself onto a rocky ledge, his body screaming, his vision swimming, his leg leaving a trail of blood on the stone.
He lay there for a long moment, breathing, bleeding, alive.
The cave was silent.
Not the silence of the deep—the silence of a place that had never known sound. The water lapped gently against the ledge. The air was still, cold, ancient.
He opened his eyes.
The chamber was natural—carved by water over millennia, its walls smooth and worn. But there was something else. Something that didn't belong.
Symbols.
The spiral. Always the spiral.
They were carved into the walls, into the floor, into the ceiling. They pulsed faintly, matching the rhythm of his heartbeat, the pulse of the shards, the glow of Gatekeeper.
And at the far end of the chamber, a door.
Not stone. Metal. Black, rusted, covered in runes that seemed to shift in the dim light. It was ancient—older than the city above. Older than anything he had seen.
Gatekeeper pulsed in his hand.
The shards are calling, he thought. Something is in there.
He pushed himself to his feet. His leg screamed. He ignored it.
What are you? he thought. What's behind you?