The camp had never been so quiet. A week had passed since the final clash on Olympus, since the fiery, trembling end of the Titan War. The air at Camp Half-Blood still carried that charged, uneasy weight, like the world itself was holding its breath. Everyone was healing — physically, emotionally — in their own ways.
Percy Jackson was trying to do the same.
He sat by the lake, feet dangling in the cool water, fingers tracing idle circles that summoned lazy ripples across the surface. The sun hung low, setting fire to the horizon, casting orange and pink streaks across the water. For once, there were no monsters, no wars, no gods demanding his attention. Just quiet.
And yet... something felt off.
At first, Percy thought it was the exhaustion — the kind that went bone-deep after fighting for your life and everyone else's. But this was different. When he caught his reflection in the water that evening, his eyes weren't the same shade of green he'd grown up with. They shimmered faintly — a deeper, more vivid sea-green, with flecks of light swirling in them like tiny waves.
"Must be the sunset," he muttered, splashing the water as if to prove it wrong. But even after the sun dipped behind the hills, the glow stayed.
He didn't tell anyone. Not Annabeth, not Grover, not even Chiron. He wasn't sure how to put it into words. "Hey, I think my eyes are... oceanic now"? Yeah, that'd go great.
The weirdness didn't stop there.
Two days later, Percy found himself in the strawberry fields with Nico di Angelo. The younger demigod had been quieter since the war ended, though "quiet" for Nico was sort of his default setting. They were talking — joking, actually, which was a miracle in itself — about how Ares' kids had accidentally set the canoe dock on fire.
Percy had laughed — a full, real laugh — and suddenly the ground beside them cracked. A skeletal hand clawed its way out of the dirt. Percy jumped, nearly tripping over a basket of strawberries. Nico yelped, eyes wide.
"I swear that wasn't me!" Nico blurted.
Percy blinked, heart hammering. The skeleton, missing its lower jaw, tilted its head toward him before collapsing into dust again.
They stared at the spot for a long moment.
"Okay," Percy said finally, forcing a laugh. "That was... weird."
"Yeah." Nico squinted, looking genuinely thrown. "I didn't even summon it. And usually, when I do, I can feel it — like a tug in my gut. But that—" He waved a hand at the dirt. "That wasn't me."
Percy tried to laugh it off, but his mind was spinning. He didn't say anything about the faint shimmer of gemstones — rubies, maybe — that had bubbled up from the cracked earth for a split second before sinking back down. Nico hadn't noticed, and Percy didn't want to explain how he had.
Later that night, he sat awake in his cabin, the sea breeze filtering through the open window. The smell of saltwater usually calmed him, but tonight it just made him restless. He tapped his fingers on the side of his bed, trying to focus, but his thoughts wouldn't settle.
Something in him felt... different. Alive in a new way.
When he closed his eyes, he could sense the water in the lake, the ocean miles away, even the humidity in the air. But beneath that — deeper — was another current. Something darker, colder, with a whispering echo that didn't belong to the sea.
Shadows.
He opened his eyes, and for a heartbeat, the room dimmed. The corners of Cabin Three rippled like the shadows were moving on their own. Percy blinked, and everything snapped back to normal.
"Okay," he said aloud, voice shaky. "That's new."
Maybe he was just overtired. Maybe all the stress was messing with his head. But when he tried to sleep, his dreams weren't the usual chaotic jumble of monsters and quests.
This time, it was the throne room of Olympus.
He recognized it instantly — the towering pillars of marble, the mosaic floor that glowed faintly under the flicker of divine light. But it wasn't like before, when he'd stood there in person. He wasn't really there. It felt more like watching through rippling water.
Three figures stood before the thrones — his father, Zeus, and Hades.
They were arguing.
Zeus's voice rolled like thunder, sharp and furious. "You overstep, Poseidon! You always have!"
Poseidon's expression was a storm barely contained. "I protect what is mine, brother! You have no claim!"
"No claim?" Hades hissed, stepping forward. His black robes swirled around him like smoke. "You think you can hide him from us forever? The boy carries our blood too."
Percy's pulse spiked.
The words were in ancient Greek, fluent and fast — yet he understood them perfectly. He shouldn't have, not with the way the dialect shifted, older and harsher than what Chiron taught them. And yet every syllable made sense.
Zeus slammed his staff against the marble. "He doesn't belong to you alone, Poseidon. You know what was promised!"
Poseidon's grip tightened around his trident. His jaw clenched, and his sea-green eyes — Percy's eyes — darkened. "He's my son."
"Not only yours," Hades snapped. His voice dropped low, like the echo of a cave. "Tell him the truth, or we will."
The dream blurred. Lightning flashed. Percy caught only fragments — words like shared blood, ancient pact, balance must be restored.
And then, just before the dream dissolved completely, he heard a single line clearly, whispered like a tide against his ear:
"Tell him... he doesn't belong to you, Poseidon. Not only you. Return our son to us."
Percy woke up gasping. His room was pitch black, the only light coming from faint sparks of static dancing along his fingertips. The air smelled of salt, ozone, and smoke. His heart pounded, and when he looked at his hands, shadows rippled across his skin, vanishing as soon as he noticed them.
He stumbled to the mirror, and his reflection stared back — eyes glowing faintly, storm clouds swirling in the green.
"Okay," he whispered. "That's... bad. That's really bad."
He tried to steady his breathing, but the words from the dream echoed in his mind.
Not only you.
What did that even mean?
He wanted to dismiss it as a nightmare — gods arguing, typical family drama — but something deep in his chest told him otherwise. The kind of instinct that had saved his life too many times before.
Percy rubbed his face, sinking back onto the bed. "Great. Just great. I finally survive Kronos, and now my DNA's having an identity crisis."
The wind outside shifted. For a second, he thought he heard the faint rumble of thunder far off in the distance — and, beneath it, a whispering voice that sounded like the sea and the grave at once.
When he finally fell back asleep, the lake outside his cabin rippled as though stirred by an unseen hand.
And beneath the surface, the shadows moved.
