Over a calm ocean, flocks of birds soared across the sky, their calls mingling with the soft splashes of porpoises gliding through the waves. The morning fog lay thick over the water, but it began to part, cut through by the sleek bow of a ship as it crashed through the waves with purpose.

On the deck, Senku Ishigami stood tall, his white lab coat fluttering dramatically in the wind. Beside him, his childhood friend Taiju Ooki gripped the railing, his wide eyes scanning the horizon with equal parts curiosity and concern.

"So, you said this is where you picked up the distress signal?" Taiju asked, his voice rising over the roar of the sea. "And it came from that weird old radio in your house?"

Senku nodded, adjusting his goggles as the wind whipped his spiky hair. "Not just any radio—my dad's radio. He's had it since before the petrification. From what I could tell when I checked it out, it shouldn't even be functional anymore, let alone picking up a signal."

Taiju frowned, tilting his head. "Maybe it's just a glitch? Or maybe someone nearby found a similar piece of equipment?"

Senku smirked, the glint of discovery already lighting up his sharp eyes. "Nah. I'm ten billion percent sure it wasn't random. The signal had coordinates embedded in it—a very specific location. And guess what?" He spread his arms wide, gesturing toward the endless expanse of ocean. "There's nothing there. Just water."

Taiju blinked. "Nothing? Like, no land? Not even a little rock or something?"

"Not a thing," Senku confirmed, crossing his arms. "I double-checked using satellites. Monitored the area for weeks. Not a single blip of activity or anything resembling land. It's just a vast stretch of ocean with no explanation for why the signal came from here."

"What about a boat?!" Taiju exclaimed, gripping Senku's arm. "What if someone's stranded or in trouble? We should radio back for help!"

Senku raised a hand, cutting him off. "Dial it back, Taiju. I already accounted for that possibility. If there were a boat, it would've shown up in the satellite data. But there's nothing—no debris, no shadows, no movements. Just ocean. That's what makes this so fascinating."

Taiju relaxed his grip but still frowned, his gaze dropping to the churning waves below. "So…what are you saying? That the signal came from underwater?"

Senku grinned, his voice tinged with excitement. "Exactly. It's a puzzle—a mystery begging to be solved. Something's down there, fathoms below the surface. And whatever it is, it's calling out to us."

"A puzzle…" Taiju repeated, his tone thoughtful. He leaned over the railing, staring into the blue depths. The sunlight shimmered across the water's surface, but beneath it lay only darkness. The idea of something ancient, hidden beneath the waves, sent a chill down his spine.

"You know," Taiju said after a moment, "this feels like one of those stories where we find some kind of sea monster or cursed treasure. Like something from an adventure book."

Senku laughed, his voice ringing out against the wind. "You really are a romantic, huh? Monsters and curses don't exist. But science? Science explains everything, even this. Whatever's waiting down there is just technology—old, advanced, and probably long forgotten. That's what we're after."

Taiju smiled sheepishly. "I guess when you put it like that, it sounds a lot less scary. But still…" He glanced back at the water. "If it's something that's been hidden for this long, maybe it's been hidden for a reason."

Senku gave him a sideways glance, his smirk unwavering. "Whether it was hidden or lost doesn't matter. What matters is that we found it. And if it's important enough to send a signal after all this time, then it's something worth exploring."

The two stood in silence for a moment, the sound of the ocean filling the air. Taiju's eyes lingered on the waves, his imagination running wild with possibilities. Senku, meanwhile, stared ahead, his mind racing with calculations and theories.

As the fog began to clear completely, the faintest outline of something unnatural came into view beneath the water—a jagged, crystalline structure glimmering faintly in the sunlight.

"Senku!" Taiju cried, pointing. "What's that?!"

Senku's smirk grew wider. "Looks like we're about to find out. Welcome to the greatest discovery of our time, Taiju. Atlantis is waiting for us. Take a good look. That's not just any city—it's Atlantis. The real deal. The pinnacle of ancient technological advancement."

Taiju Ooki, standing beside him, peered over the boat's railing with wide eyes, his jaw dropping. "Atlantis?! Like, the Atlantis? The one from myths? Senku, are you saying it's real?"

"Of course, it's real," Senku replied, smirking. "And it's sitting right there, at the bottom of the ocean. Just imagine what's down there—hoverboards, water-powered computers, who knows what else. This place might have all the tech we need to accelerate humanity's revival."

Taiju scratched his head, still trying to wrap his mind around it. "So…we're going down there? To explore?"

"Hell yes, we're going down there," Senku said, his eyes gleaming with determination. "There's no way I'm leaving the greatest scientific discovery of all time untouched. Who knows what kind of game-changing knowledge those Atlanteans left behind?"

As the boat bobbed on the waves, Senku's gaze lingered on the shadowy city beneath the water's surface. The crystalline structures seemed to pulse faintly with an unearthly glow, as though waiting for someone to awaken their secrets.

Deep within the sunken ruins of Atlantis, a soft hum resonated through the still water. A faint green glow emanated from the Medusa device, resting on a pedestal at the heart of the city. Around it, the petrified forms of Atlanteans remained frozen in time, their last moments preserved in unyielding stone.

At the center of it all was Kia, her small frame encased in petrification, clutching a leather-bound journal tightly against her chest. Her expression was frozen in a mix of defiance and fear, her wide eyes gazing toward the green light that had claimed her family and her city. The once-vibrant kingdom, with its hoverboards and crystalline towers, was now a silent tomb, waiting for a new spark to bring it to life.

Above her, a faint glimmer of sunlight broke through the water's surface, dancing across the ruins like a whisper of hope. The light touched the edges of the Medusa device, making its intricate carvings shimmer. For a brief moment, the hum grew louder, as though the ancient device sensed something—or someone—drawing near.

Xxx

Back on the boat, Taiju couldn't contain his excitement. "Senku, this is amazing! We're going to be the first humans in thousands of years to step foot in Atlantis. Do you think we'll find survivors? Maybe someone still alive after all this time?"

Senku chuckled, his gaze fixed on the ruins below. "Highly unlikely. The petrification process was total, and unless someone found a way to unfreeze themselves—an absurdly low probability—we're looking at a city frozen in time. A graveyard of progress."

But as Senku spoke, his eyes narrowed slightly. He couldn't shake the feeling that something—or someone—was waiting for them down there. Science told him the odds were slim, but a part of him, the part that thrived on discovery, whispered otherwise.

"Well," Taiju said with his usual optimism, "if anyone could survive thousands of years, it'd be someone as smart as you, Senku!"

Senku smirked, tapping a finger against his temple. "Damn right. And if there's anyone alive—or anything left to revive—it's only a matter of time before I figure it out."

As the boat drifted closer to the ruins, Senku's thoughts were already racing. A lost civilization this advanced wouldn't have gone down without a fight. Somewhere in those ruins, answers were waiting. And maybe—just maybe—something far more extraordinary.

The story of Atlantis, and the girl frozen at its heart, was far from over.