Chapter 3: The Crack in the Wall

The air in Jisung’s cramped quarters felt like wet concrete. Three of them hunched around a table cluttered with wires and a salvaged radio receiver whose guts were splayed open like a mechanical corpse. Felix’s hands trembled slightly as he traced the faint, ghost-like waveform on the oscilloscope screen Jisung had rigged from a broken tablet. “It’s not just a location,” Jisung said, his voice a dry rasp. He hadn’t slept since the second broadcast. Dark crescents hung under his eyes. “The carrier wave has a modulation—it’s like a heartbeat. Regular. Predictable. And it’s fading.” Chan leaned over him, jaw tight. “Fading how fast?” “If we don’t answer by tomorrow night, it’ll be gone. The frequency will collapse into static. Whoever that voice is… they’ll be silenced for good.” Felix looked up. The memory of the voice—*Don’t trust the silence*—coiled in his chest like a living thing. “Why would he warn us? He’s the one stuck out there. He should be begging us to come.” “Maybe he’s not alone,” Chan said quietly. He rubbed his face, the perpetual weight of responsibility pulling his shoulders forward. “Maybe whatever’s out there listens, too.” The room fell into a thick, uneasy silence broken only by the hum of the jury-rigged equipment. Outside, the District’s curfew siren was still hours away, but the sky through the grimy window was already turning the color of bruised metal. Jisung flicked a switch. A thin, tinny sound leaked from the speaker—the raw, unprocessed signal. It was barely audible, a whisper of a whisper, but Felix’s ears caught it instantly. English again. Words broken, repeated like a prayer: *“Base… can you read… coordinates…”* Felix translated in a low murmur. Chan’s eyes widened. He snatched a pen and scrawled the numbers on his palm. “That’s inside the wall,” Chan said, staring at his hand. “Three blocks east of the old gate. That’s… that’s sealed sector. The quarantine zone from the first outbreak.” Jisung’s breath hitched. “Nothing lives there. The patrols say it’s dead. Just concrete and rust.” “Then how is someone broadcasting from it?” Felix’s voice cracked. Chan was already moving, pulling on a dark jacket. “We’re going. Tonight. Before curfew ends, while the signal’s still alive. Jisung, stay here and monitor. Felix, you’re the only one who can hear the voice clear—you’re coming with me.” “Chan, that’s insane,” Jisung hissed. “If the patrols catch us outside after lights-out—” “Then we don’t get caught.” Chan’s tone brooked no argument. He grabbed a small flashlight and a pocketknife. “Felix. You with me?” Felix swallowed, his heart drumming against his ribs. He thought of the voice—tired, desperate, real. “Yeah. Let’s go.” The corridors of District 9 were narrow and poorly lit, lined with doors that had long since lost their paint. They moved like ghosts, sticking to the shadows. At the eastern edge, a wall of corrugated iron rose twenty feet high, topped with razor wire. Beyond it, the sealed sector—a graveyard of collapsed factories and silent towers. Chan found a rusted maintenance hatch, half-hidden behind a pile of debris. It groaned as he pried it open, revealing a black mouth of darkness. “After you,” he whispered. Felix crawled through, the metal cold and sharp against his palms. On the other side, the world changed. The air smelled of dust and mildew, and the only sound was the distant drip of water. Above, the sky was a deeper black, as though even the stars refused to touch this place. They walked for ten minutes, following the coordinates. The buildings loomed like skeletons. Then Felix stopped, a chill racing down his spine. “There,” he whispered, pointing. A single light flickered in a basement window of what had once been a power substation. It pulsed in rhythm with the modulation Jisung had described. The heartbeat of the signal. Chan put a finger to his lips. They crept closer. The window was cracked, its frame warped. Felix peered inside. The basement was empty except for a metal chair, a coil of cable, and a small device blinking red. No one was there. “The voice—” Felix started. “Was a recording,” Chan finished, his voice hollow. “A loop. They set this up… and then they left. Or were taken.” Felix’s hand brushed the glass. The device blinked once, twice, then went dark. The signal died. Silence, cold and absolute, swallowed the substation. And from somewhere deep in the sector, echoing off the dead walls, a new sound rose—a low, mechanical hum, growing louder. Coming closer. Chan grabbed Felix’s arm. “We need to move. Now.” They ran, the hum chasing them through the dark, as the District’s curfew siren began to wail in the distance.