The City Beneath the Tide

The rain had stopped just as the tide began to pull back, leaving the reef glistening under the pale moon. Kellan stood barefoot at the water’s edge, clutching the tarnished medallion his grandmother had given him.

“When the tide is lowest,” she used to say, “the stones will rise, and the way will open.”

And tonight, they did.

A row of black pillars broke the surface, stretching far out into the bay. Between them, a path of slick stone descended into the moonlit water.

Behind him, a voice called out, “You’re actually going through with it?”

It was Lira, her dark hair tied back, crossbow slung over her shoulder.

“You don’t have to come,” Kellan said.

“I promised your grandmother I’d watch your back,” she replied. “Besides, I want to see if the stories are true.”


They walked the exposed path, the sea lapping at their ankles. The pillars seemed older than anything Kellan had ever seen—etched with spirals and symbols that shimmered faintly.

Halfway across the bay, the water fell away on either side into sudden darkness. Below, a city lay sleeping—domes of coral, spires of silver, streets paved with pale stone.

At the final pillar, stairs descended beneath the surface.

Kellan took a breath, held the medallion tight, and stepped into the water.

It wasn’t cold. It wasn’t even wet. The moment he submerged, the water around them became breathable air, shimmering like glass. Lira let out a sharp breath. “Guess the stories were true.”


They entered the city. Bioluminescent plants lit the streets in hues of blue and green. Strange fish swam through open windows, ignoring gravity entirely.

“This place is… alive,” Lira whispered.

“It’s been here longer than the tides,” Kellan said. “And it’s been waiting.”

At the city’s center stood a tower wrapped in translucent vines. Inside, the walls were covered in shifting patterns, like living maps. In the middle, a pedestal held a sphere of black glass.

“That’s it,” Kellan murmured. “The Tideheart.”


The moment he touched it, the sphere pulsed, and the ground shook. Water began to spill down the streets—not seawater, but something darker, heavier.

“Kellan…” Lira said. “I think you woke something.”

From the edges of the city, shapes moved. Tall, sinuous figures with eyes like polished shells and skin rippling like water. Their voices were a chorus of whispers:

“Return what you have taken.”

Kellan held the Tideheart close. “This belongs to my family. It was stolen generations ago.”

The tallest of the figures stepped forward. “It belongs to the Deep. Without it, the tide will not turn.”


The dark water rose faster. Kellan felt it pulling at his legs, heavy as stone.

Lira loaded her crossbow. “We can fight our way out.”

“No,” Kellan said. “We can’t kill the tide.”

He turned to the tallest figure. “If I return it, will you let us leave?”

The figure’s eyes flickered. “Yes. But the tide will never fall again. Your shore will drown.”

Kellan hesitated. “What if I place it back… but return at the next low tide? Share it. One turn for you, one turn for us.”

The figures murmured to one another in a sound like waves breaking. Finally, the leader spoke. “Agreed. But if you do not return, the Deep will come to claim you.”


Kellan stepped to the pedestal and set the Tideheart back. Immediately, the dark water sank, flowing out through unseen channels. The figures faded into the shadows, and the city seemed to sigh with relief.

They retraced their steps through the glowing streets, up the stone stairs, and into the open air. The tide had not yet returned, but the pillars were sinking slowly beneath the waves.

“Guess we made a deal with the sea,” Lira said.

Kellan nodded. “And now I’ve got one tide to prepare before it comes collecting.”

As they reached the shore, he glanced back at the calm water. Far beneath the surface, the city slept again—but not as deeply as before.