Reincarnated As Poseidon
Chapter 30: The war Begins

Chapter 30: The war Begins

Storms twisted overhead, casting shadow upon shadow over the open ocean. Waves crashed in every direction—not wild, not chaotic... but intentional. As if something had commanded the sea to rise.

And something had.

From the southern trench, Lyrielle stood atop a platform of living coral, her long silver hair dancing with the current. She raised her arm, her eyes glowing with the hymn of the Deep Choir.

Behind her, the sea itself began to hum.

Thousands of sirens emerged from the depths—some beautiful, some monstrous. Their voices weaved through the water like spears of sound, tearing through silence, shaking coral reefs miles away.

"Let the palace burn," she whispered.

They moved as one.

---

Naerida’s Palace

"INCOMING!"

The warning came too late. The first wave slammed into the shield like a hammer through glass. Sirens screamed past the walls, slicing through guards with blade-fins and shimmering tridents. Blood bloomed red in the water.

Dominic stood at the edge of the palace terrace, his hand gripping his newly-formed trident—Poseidon’s true weapon, awakened and alive. Beside him, Naerida floated, armored in pearl and rage.

"They came fast," she said under her breath.

Dominic didn’t answer. His eyes scanned the chaos. Sirens breached every level. The Choir’s hum was messing with the palace enchantments. Even the shield above was flickering.

A second blast hit. A portion of the palace cracked open.

"Fall back!" Naerida shouted to her generals.

But Dominic dove forward.

In a blur, he met the first Siren Knight mid-charge—trident to spear, their clash rippled shockwaves through the water. Dominic spun low, kicked off the wall, and pierced the siren’s heart. The body floated away, eyes wide in silence.

He didn’t stop.

He moved like he had nothing to lose. Three more came. He cut two down and slammed the third into a spiked column. Blood fogged the water.

Naerida joined him, casting rings of force that exploded through waves of the enemy. Her guards followed, but they were dropping like flies.

Aegirion was nowhere to be seen.

From above, Lyrielle watched, unfazed.

"So that’s the vessel," she murmured, eyes narrowing at Dominic.

She raised both hands.

Behind her, a creature emerged from the rift—colossal, dripping, its body layered in armor that pulsed with red glow. It didn’t swim. It marched through the sea like gravity meant nothing.

Naerida’s eyes widened. "No... she released one of the Choir’s Beasts?"

Dominic clenched his jaw. "Then we stop it."

"Dominic—wait—"

Too late.

He surged forward alone.

---

The Choir’s Beast

The water turned black as the creature roared—a low, vibrating thunder that shattered coral towers. Dominic met its charge head-on, trident glowing with divine light. They collided with a crash that turned the battlefield still for half a second.

The monster bellowed. Dominic was flung back—but he spun, recovered, and lunged again.

He fought with all he had.

The trident moved like it was part of him—blades of light piercing the monster’s scales, carving glowing gashes across its flesh. The beast screamed, flailing wildly, but Dominic didn’t fall.

He was covered in cuts. Blood streaked the water around him. His breath was ragged.

But he refused to stop.

Another strike—then another.

The beast swung its tail—Dominic dodged and stabbed deep into its side.

It wailed. It broke.

And then something shifted.

A pulse rippled through the ocean, deeper than before.

---

The Underworld

Far beneath everything, across the gates of the dead, in the blackened throne room of the Underworld, a god stirred.

Hades sat forward, eyes glowing pale.

"The sea burns with war," he whispered.

He closed his hand. Shadows curled around his fingers.

"Poseidon’s heir bleeds."

He smiled.

"The balance tilts."

---

Back in the Palace

Dominic drove the trident through the beast’s chest. It howled one final time before collapsing in a slow-motion spiral into the abyss.

Dominic floated there, exhausted.

Naerida caught him, her arm under his.

"You’re bleeding."

"I’ll live," he whispered.

More sirens came. They didn’t stop.

Lyrielle’s voice echoed through the deep.

> "That was just the beginning."

And then—

—a shadow passed overhead.

Everyone froze.

Naerida looked up.

Dominic’s eyes widened.

From the darkest part of the deep, a second creature began to rise. This one... was ancient. Its body coiled like a leviathan. And its voice... didn’t sing.

It screamed.

The sea split with thunder.

Dark clouds twisted above the water’s surface, spiraling like a great funnel. Beneath, armies assembled. Sea dragons growled from behind coral ridges. Mer-knights sharpened spears forged from obsidian and tidecrystal. Naerida stood at the head of her forces, her armor glowing pale blue beneath the flickering storm light.

"They’re coming," she whispered.

Lyrielle’s Choir had already begun its approach.

Thousands of sirens rode dark currents. Their melodies distorted the tides, crashing through trenches and temples. The sea bent to their will, pulsing with their hymns.

Maelora was nowhere to be seen.

But the Deep Choir was not subtle. They surged toward Naerida’s palace like a tidal spear. Coral towers cracked. Ancient guardian statues stirred, rising from slumber to defend their city.

"Hold the front!" Naerida shouted.

Her voice echoed across the waves. Triton lords and dolphin riders surged forward. Light clashed with shadow. Magic crackled. Spears met claws.

Dominic fought near the edge, his trident singing through the current.

A siren lunged at him—he ducked, spun, and drove the trident upward. Blood clouded the water. Another came from the side. He caught her with a pulse of ocean magic, slamming her into a stone wall.

Beside him, Aegirion struck with brutal precision, spinning his staff in fast arcs. But even he looked strained. These weren’t ordinary sirens. They were possessed by the Deep.

Then, from the far trench, came it.

A leviathan born of the abyss.

It rose slow. Towering. Endless limbs. A face stitched from bone. Eyes of drowning fire.

Naerida faltered.

Even Lyrielle, watching from afar, paused.

"That’s not mine," she muttered.

Dominic floated upward, breathing hard.

"Aegirion... do you feel that?"

Aegirion nodded. "This isn’t part of the plan."

The creature opened its mouth. Not to bite. But to sing.

The sea turned black.

Hundreds of Naerida’s soldiers clutched their heads, screaming. Some dropped their weapons. Others fled.

Dominic surged forward. He knew what had to be done.

He drove the trident deep into the sea, summoning a whirlpool of divine force. A beam of pure pressure struck the creature, halting its advance. The leviathan screamed, twisting in pain. A wound tore open across its chest.

Naerida’s forces regrouped.

Sirens began to fall.

But the beast wasn’t done. Its limbs writhed. A rift formed in the sea floor, pulsing with ancient ruin.

Dominic turned to Aegirion. "We end this. Now."

Together, they charged.

Light collided with dark. The war of the abyss had begun.

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