Brotherhood of the Last Shelter

The Old Air

The hum of sleep was the only sound in the room.

Marcus breathed in slow, steady rhythms from his corner, his fever breaking into a light sweat that cooled his forehead. Luggard was curled up on his side on the dry canvas tarp, his hand still resting near the strap of his backpack like he expected someone to snatch it away in the dark.

Donald sat against our heavy alloy door, his chin resting on his chest. His wrench lay flat across his lap. Even half asleep, his fingers were curled around the cold steel handle. He looked tired down to his bones.

I quietly stood up from my crate. My knees made a faint cracking sound in the quiet room.

I walked over to Donald and gently tapped his shoulder.

He blinked awake instantly, his right hand tightening on the wrench before his eyes even focused on my face. When he saw it was me, his shoulders dropped, and he let out a long, quiet breath through his nose.

"Your turn to sleep?" Donald whispered, wiping his face with his sleeve.

"My turn," I said softly. "Lie down on the spare tarp beside Luggard. You did enough heavy lifting for one night."

"My back feels like a truck ran over it," Donald muttered. He stood up slowly, groaning under his breath as he stretched his legs. "If that door makes any noise, don't try to be brave. Wake me up."

"I will," I told him.

He dropped down onto the canvas beside our younger brother, pulled his dirty work jacket over his chest, and was completely out within sixty seconds.

I picked up Donald's heavy wrench and sat down in his spot by the door.

The cool metal of the alloy plate pressed against my back. It felt solid. Grounded. The faint vibration of the city above was entirely gone now. No distant sirens, no subway trains rattling through adjacent lines, no horns from the boulevard. The blackout was complete.

In my peripheral vision, the blue system screen hovered in the dim glow of my phone's night light.

Shelter Air Quality: 84%.

Estimated Time Until Stale Threshold: 36 Hours.

Pending Construction: Basic Air Filtration Recirculator.

I leaned my head back against the dark metal wall.

Thirty-six hours sounded like plenty of time, but in a crisis, hours slipped away like loose sand. If Marcus's fever spiked again, or if Thorne sent another sweep team down the utility corridors, we wouldn't have the luxury of working at our own pace. We had to get the blower motors before the air turned bad.

I waited four hours, letting my brothers get real rest. When the digital clock on my phone hit five in the morning, I stood up and clicked on our second flashlight, keeping the beam pointed down at the concrete floor.

Luggard was already awake. He was sitting cross-legged, rubbing his eyes and quietly checking the clean bandage on Marcus's shoulder.

"How is he?" I asked, walking over.

"His skin is warm, but he isn't shivering anymore," Luggard whispered. "The wound looks clean. The iodine kept the dirt out."

Marcus stirred at the sound of our voices. He opened his eyes, blinking against the faint light, and pushed himself up onto his good elbow.

"Stop hovering over me like I'm in a coffin, boys," Marcus grunted, his voice stronger than it was a few hours ago. "I'm sore, but I'm alive."

Donald sat up from his corner, shaking his head with a tired grin. "Old man wakes up ready to complain. That means he's going to make it."

"Give him two antibiotic pills and half a bottle of water," I told Luggard.

Luggard opened the olive medical box, handed the medicine to Marcus, and watched him swallow it down.

"Now," I said, turning to the north wall of our maintenance room. "Let's look at this air shaft."

Donald grabbed his crowbar and flashlight. He walked up to the old green iron louver Marcus had pointed out earlier. Decades of dust, dried paint, and cobwebs covered the seams.

"The frame is cast iron, bolted straight into the concrete with four rusted hex bolts," Donald said, tapping the metal with the tip of his bar. "If I force it with the pry bar, the bolts will snap, and it will make a loud clang against the wall."

"Use the cutting torch on low flame," Luggard suggested softly. "Just melt the heads off the four bolts. The grease from the paint will smoke a little, but it won't make a sound."

Donald nodded. "Good call."

He hooked up the small torch, struck the sparker with a muffled click, and brought the tiny blue flame close to the top-left bolt. The heat bit into the rusted head. The ancient paint bubbled and hissed, releasing a thin wisp of acrid smoke, but Donald kept the flame steady. Within two minutes, the four bolt heads glowed dull red and dropped onto a piece of wet cloth Donald had laid below.

Donald wedged the flat edge of his crowbar into the seam and pried gently.

The cast-iron louver came free with a soft scrape.

Behind it, a wide, square brick tunnel opened into the wall. A cool, steady breeze blew directly into our faces, carrying the distinct smell of wet earth, pine needles, and morning mist.

"Fresh air," Luggard breathed, closing his eyes for a second as the cool draft hit his skin. "Marcus was right. It connects straight to the park vents."

I brought my flashlight up and aimed the beam down the square brick shaft.

About fifteen feet inside, mounted on a solid concrete foundation, sat two massive cylindrical blower units made of dark painted iron. They were connected to heavy cast-iron intake cowls that angled upward into the rock. Thick, rubber-insulated power cables hung down from the motor housings, stripped and disconnected from when the city abandoned the auxiliary line decades ago.

"Look at the casings," Donald said, leaning his head into the opening. "Old industrial squirrel-cage fans. Heavy bearings, thick copper windings. They don't make them like that anymore. Those motors will run forever if we feed them forty-eight volts."

"Can we pull one into the room?" I asked.

"Not in one piece," Donald replied, shining his light along the mounting bolts. "The housing is wider than the vent opening by two inches. But I can unbolt the front faceplate, pull the inner fan wheel and the motor core out, and bring it through in three parts. It'll take me forty minutes."

"I'll help you hold the motor weight," Luggard said, already rolling up his sleeves. "Electric motors that size weigh sixty pounds. You can't unbolt the rear flange with one hand."

"Then let's get inside," Donald said.

Donald and Luggard squeezed through the square vent opening, their boots echoing softly in the brick tunnel. Donald began loosening the heavy housing nuts with his wrench, while Luggard braced his back against the brick wall, taking the downward weight of the iron casing so the heavy unit wouldn't crash onto Donald's hands.

I stood by the opening, keeping my ears open.

A soft chime sounded in my mind.

The blue interface rolled open.

Shelter Construction Triggered: Air Scrubber Component Acquisition.

Task Progress: 20%.

Base Synergy Active: Work speed increased by 15%.

I watched the text hover, but my eyes drifted down to the status bar at the bottom.

Surface Scan Interference: 98% (High).

Nearby Electronic Activity: Unidentified radio frequency detected on Channel 9.

I froze.

Channel 9.

That was the emergency transit band from the heavy yellow radio I had found in the dark water beneath the depot. The unit was currently sitting in my ninth inventory slot.

I reached into my inventory and pulled the waterproof radio unit out.

The small green display light on the faceplate, which had been dead when I fished it out of the sludge, was now faintly glowing. Donald's grounding work hadn't just shielded our room from scanners; it had pulled just enough stray static from the old transit cables to trickle-charge the radio's emergency capacitor.

A tiny burst of white static hissed from the miniature speaker.

I quickly pressed the volume button down, bringing the plastic casing right up to my ear.

Through the hiss of the empty airwaves, a cold, familiar voice came through the speaker, broken by static but unmistakably clear.

"...patrol three, report. The utility drop at Third and Elm was not an accident. The breakers were tripped manually from the inside... I want every storm drain within six blocks welded shut before noon... If they are underground, we will seal them into their own tomb."

It was Elias Thorne.