The transition back was a violent act of physics.
One moment, I was suspended in the violet-hued grace of a prehistoric city; the next, I was gasping on the cold stone floor of the lighthouse basement, my lungs heaving as they relearned the crude art of breathing dry air. The washbasin was just a washbasin again—white porcelain, chipped at the rim, filled with a few inches of stagnant, lukewarm water.
Vespera didn't follow me out. Not entirely. Her hand lingered for a second, a pale shadow beneath the surface, before retracting into the deep.
[...Hide...] The vibration was sharp, a warning that made my teeth ache.
I scrambled to my feet, my clothes bone-dry despite the journey I'd just taken. That was the first rule of the Deep, I realized: it only took what it wanted. I looked at my reflection in the mirror above the basin. My eyes were bloodshot, the pupils slightly too wide, and tucked behind my ear was the crystalline flower from the ruins. It pulsed with a faint, dying light.
Thrum-thrum-thrum.
The sound of the engine was close now—too close. I tore the flower from my head and shoved it into the pocket of my heavy wool coat just as the first heavy boot struck the wooden docks outside.
I climbed the stairs, my heart a frantic metronome. By the time I reached the exterior gallery, the Acheron II was tethered to the stone pilings. It was a sleek, matte-black research vessel, bristling with radar arrays that looked like skeletal fingers scratching at the fog.
A man stepped off the gangplank. He looked like a ghost from a life I had tried to bury.
"Elias," the man called out, his voice amplified by a megaphone. "You didn't answer the radio. We thought the silence had finally swallowed you whole."
Aris.
My brother stood on the dock in a high-collared tactical jacket, his glasses gleaming under the lighthouse's sweeping beam. Behind him, three men in grey jumpsuits began offloading heavy, reinforced crates marked with the Acheron sigil—a stylized eye peering through a keyhole.
"The radio is temperamental, Aris," I shouted down, my voice cracking. I clutched the railing so hard the rusted iron bit into my palms. "And the schedule said the supply drop wasn't for another three weeks. What are you doing here?"
Aris began to climb the stone stairs, his movements precise and athletic. "The Board grew concerned. Anomalous seismic readings centered exactly on this coordinate. They sent me to perform a... structural audit. And to see if my big brother finally lost his mind to the 'Hum.'"
He reached the landing and stopped three feet from me. He smelled of ozone and expensive espresso—the scent of the mainland. He reached out as if to pat my shoulder, but I flinched away.
His eyes narrowed behind his lenses. "You look terrible, Elias. Pale. Trembling. And your skin..." He reached out, his gloved fingers brushing my jaw. "You're cold. Sub-zero cold."
"It's a lighthouse in the North Atlantic, Aris. It's not a spa."
"True." Aris looked past me, peering into the dark doorway of the tower. He pulled a handheld device from his belt—a sensor that began to chirp with a low, rhythmic frequency. "But lighthouses don't usually emit bio-luminescent traces of organic matter that hasn't been seen since the Devonian period."
My blood turned to slush.
Below us, deep in the guts of the rock, the Hum spiked. It wasn't the lullaby Vespera had sung in the ruins. It was a low, guttural growl that made the very stones of the tower groan.
Aris's device shrieked in response. A smile spread across his face—a slow, clinical expression that made him look more like a monster than anything living in the abyss.
"Oh, Elias," he whispered, leaning in close. "You didn't just find a place to hide. You found Her, didn't you? The Great Singularity."
"I don't know what you're talking about," I lied, my hand instinctively pressing against the pocket where the sea-flower lay hidden.
"Don't play the martyr. It doesn't suit you." Aris turned back to the docks and raised a hand. "Deploy the Sonar-Buoys! I want a full 360-degree acoustic net. If it breathes, I want to hear its heartbeat."
NO.
In my mind, I felt a sudden, sharp pain—Vespera's scream. It wasn't a sound, but a jagged tear in my consciousness as the first sonar pulse hit the water.
The war hadn't just come to the lighthouse. It had come for my soul.