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Home / Apocalypse / GRENUN: When The Air Killed Us / Chapter 22: The Incoming Signal
Chapter 22: The Incoming Signal
Author: Bakari
last update2026-11-11 00:23:12

The red LED on the secondary telemetry receiver blinks with a steady, mechanical rhythm against the dark brushed-steel panel of the master broadcast console.

BEEP.

The sound cuts through the steady mechanical hum of the diesel generator running in the subterranean vault below us. It is a clean, artificial tone—stripped of static, stripped of atmospheric interference—repeating every three seconds on the exact guard channel assigned to corporate emergency operations.

Mara steps through the shattered glass door of the control room first, her empty shotgun slung across her back, her tactical boots leaving dark, wet footprints across the dry floor. I follow right behind her, my left hand still cramped into a stiff claw from carrying the spent scrubber core, my bare skin shivering as the cool air of the bunker hits my arms.

Dr. Weber stays near the threshold, clutching the splintered wooden doorframe with his grey-veined fingers. He doesn't enter the room. He stands in the amber strip lighting, his hollow brown eyes fixed on the blinking red light like a man watching a bomb fuse burn down.

"That's not an automated beacon," Weber rasps, his voice rough and dry as paper. "The automated distress loops use the 406 megahertz band. That's a directional transmission on the encrypted Regen Enforcer channel."

Mara reaches the console desk, leaning her hands flat against the glass edge, her hazel eyes scanning the digital monitor:

INCOMING FREQUENCY: 142.050 MHz (DIRECTIONAL HIGH-GAIN)

ORIGIN: SECTOR 7 — LUBMIN BIO-DOME COMPLEX

SIGNAL STRENGTH: 78%

ENCRYPTION MATRIX: REGEN-TACTICAL-4

DATA PACKET RECEIVED. PLAYING AUDIO BUFFER...

The console’s internal speaker gives off a long, high-pitched burst of digital static—KZZZZZT—followed by the heavy, rhythmic click of a tactical headset push-to-talk switch.

Then, a voice fills the control room.

It isn't the smooth, harmonious humming of the infected. It isn't the broken, pathetically human weeping of Dr. Weber.

It is a woman's voice—sharp, clipped, and completely flat, carrying the mechanical cadence of a military operator running a tactical check under live fire.

"Broadcaster on the ridge, this is Enforcer Captain Vane, Project Regen Security Operations, Sector 7," the voice rasps through the speaker grill. "We logged your 100-kilowatt atmospheric pulse three minutes ago. Your counter-frequency cleared our outer perimeter sensors in Lubmin, but it triggered a localized systemic reaction in the remaining unsealed domes."

Mara leans closer to the terminal, her jaw tightening. "A systemic reaction?"

Captain Vane’s voice continues without a pause, cold and methodical: "The synchronized collective does not tolerate atmospheric dead zones. The pulse didn't just clear the air—it drew every active host within twelve miles toward the source of the transmission. You didn't just save Greifswald, ridge operator. You turned that broadcast tower into a beacon."

My stomach drops through the floorboards.

I step up beside Mara, hitting the transmit key set into the console desk.

"Captain Vane, this is Silas Brandt, former Junior Systems Tech, Sub-Level 3," I say into the console microphone, my raw throat straining to project through the speaker. "The master core from the lower facility is destroyed. We fused the battery to jump the electronic gates and pulse the tower. We have three days of generator fuel left up here. Is the master scrubber at Lubmin still intact?"

A long, agonizing pause fills the room. The static on the line rises and falls like the sound of distant surf.

When Captain Vane speaks again, the clipped, tactical tone in her voice cracks slightly, revealing a thin layer of sharp steel beneath the military precision.

"Brandt," Vane says, naming me as if reading from an internal security file. "You're the tech who signed the valve clearances on Floor 2 before the quake."

"I signed the maintenance logs," I say, my knuckles turning white against the console edge. "Weber ordered the pressure override."

"Weber is dead or infected, Brandt, it doesn't matter who signed what," Vane snaps back. "What matters is that the industrial scrubber in Vault 7 is active, but it’s running on a damaged secondary cooling loop. We have three hundred uninfected survivors locked inside Bio-Dome 2, surrounded by a high-density wall of Regen-4 aerosol. If the cooling loop fails, the seal drops."

She pauses, the sound of heavy metal doors slamming echoing in the background of her transmission.

"We have the heavy transport armaments, Brandt. You have the regional broadcast transmitter. If you can maintain that 100-kilowatt counter-frequency pulse for seventy-two hours, we can drive an armored bio-transport through the green zone to your ridge and link the Lubmin master scrubber into your broadcast grid permanently."

"And if the generator up here runs out of fuel before you reach us?" Mara asks, leaning over the microphone.

"Then the host collective reaching your ridge won't need to break your blast door," Vane replies flatly. "They’ll just wait for your signal to die, step onto your platform, and let you breathe."

The transmission cuts off with a hard, final CLICK.

The red light on the console screen stops blinking, turning a solid, steady amber:

DIRECTIONAL LINK: TERMINATED

BROADCAST COUNTER-FREQUENCY: STABLE (99.8%)

DIESEL GENERATOR FUEL RESERVE: 71 HOURS, 42 MINUTES

The silence returns to the bunker, heavy and suffocating.

Mara turns her head to look at me, her red-rimmed hazel eyes reflecting the green LEDs of the server racks. She doesn't ask if Vane can be trusted. She doesn't ask if an Enforcer captain who abandoned the lower districts to lock three hundred people inside a corporate bio-dome is a savior or a jailer.

We don't have the luxury of choosing our allies anymore.

"Three days," Mara says quietly, her hand resting on the receiver of her empty shotgun. "Seventy-one hours of fuel. And every Grenun between here and the coast is walking up this mountain."

I turn back to look through the shattered glass door toward the Entryway.

Dr. Weber is still sitting on the floor, his head bowed, his grey-veined fingers tracing the lines of black soot on his knees.

Out in the concrete yard beyond the blast door, the sea wind howls through the steel girders of the broadcast tower. The sky over the Baltic has turned completely black, a starless vault hanging over a drowned world.

Down on the access road, far below the granite ridge, the first faint sound drifts up through the pine trees.

It isn't a hum. It isn't a lullaby.

It is the sound of thousands of wet boots sloshing through the mud in absolute, synchronized silence, advancing toward the light on the peak.

 

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