A guttural roar tore through the darkness as Osenya and Jorik plummeted. The air, thick with the scent of ozone and damp earth, rushed past her ears. Her arms, still clasped around Jorik’s torso, tightened instinctively. The plummet ceased with a wrenching snap against her shoulders. They landed, not on jagged rock, but a yielding, spongy mass that gave way with a wet sigh, cushioning their descent. The impact still knocked the wind from her lungs, pain lancing through her ribs as Jorik’s heavier form pressed down. He groaned, a pained, shallow sound. Before her eyes adjusted, a soft, ethereal luminescence bloomed around them, casting long, wavering shadows. They lay sprawled on a bed of phosphorescent moss, its pale green light illuminating their new prison. The air here was strangely still, devoid of the city’s incessant drone, yet it thrummed with a low, resonant hum. Osenya scrambled, pushing Jorik’s dead weight aside with a desperate surge of adrenaline. His face was ashen, slick with sweat and the grime of the shaft. The gash across his bicep wept steadily, soaking through his soot-crusted sleeve. His breathing rattled through his teeth, ragged and thin. Her own hands trembled, but a new, fierce resolve seized her. She ripped a strip from her wool tunic, the coarse hem tearing with a sharp rasp. “Jorik,” she rasped, her voice thick with fear. She pressed the makeshift bandage against the wound, applying firm pressure. He flinched, a low moan escaping his lips. His eyelids twitched against the murky glare. “Stay with me. Don’t you dare close your eyes.” The moss beneath them glowed brighter, revealing their surroundings. They had landed within a vast, circular hall, its curved stone etched with brass filigree that flickered with a dull copper gleam. Towering pillars, carved from an obsidian-like rock, rose into the gloom, supporting a ceiling lost to shadow. Polished brass channels snaked across flagstones, converging on a colossal obelisk at the center—a towering pillar of seamless metal humming with an almost sentient cadence. The air itself seemed to vibrate with a low, wordless chorus, as if the very stones were murmuring. Osenya worked with frantic haste, her focus entirely on Jorik. She folded the fabric, binding it tightly around his arm, trying to stem the flow. He groaned again, his eyes finally fluttering open, hazy and unfocused. He tried to speak, but only a dry cough escaped. “Shh,” she murmured, her voice uncharacteristically soft. She leaned closer, her cheek brushing against his damp hair. The tension in her throat tightened into a hollow ache. Her gaze locked with his, anchored by his labored pulse and the sharp press of his hand. Her ribs ached against the frantic thump beneath them. His eyes, though clouded with pain, held hers with an intensity that burned. His good hand, trembling, lifted, his knuckles brushing her jawline. The world seemed to shrink to just the two of them, poised on the edge of an admission. Then, the low reverberation through the floor intensified. The metal inscriptions flared, and a mournful bronze chord rang through the stone, shivering into the marrow of their shins. The moment fractured. Jorik’s gaze shifted toward the tapering brass column rising from the moss. His eyes, though still pained, sharpened with a historian’s focus. “The… the Resonator,” he whispered, his voice hoarse. He tried to heave himself onto an elbow, but Osenya pressed her hand to his collarbone. “Don’t move. You’ll rip the binding.” Her voice was tight with renewed anxiety. He ignored her, his eyes fixed on the monolith. “The… the writing. It’s… the Old Tongue. Of the Griven. My ancestors… they called this the Sunken Heart.” He coughed, a rattling sound. “This isn’t a tomb. It’s… a battery.” He pointed a trembling finger toward the gleaming bronze line. “The glyphs… they speak of the ‘Soul Harvest.’ The Griven didn’t die out. They… they surrendered themselves. To the brass. Their consciousness, their essence… they poured it into these veins. To power Tarnoch. Their living vitality… bled dry… to feed the looms above.” Osenya stared, a cold dread seeping into her marrow, colder than any Tarnoch winter. The whispers she’d heard in the walls, the vanishing tenants, the Winter Tithe… it wasn’t just a metaphor. It was a grisly, literal truth. The city was a vampire, feeding on the trapped souls of the long-dead, and now, the recently living. The shuddering she’d felt through the factory floor, the mechanical voice mimicking her… it was all connected. “The Tithe,” she breathed, the word a curse. “They’re not just disappearing people. They’re adding them to this. To the… the harvest.” She looked at the central pillar, its metal surface gleaming with internal fire. It wasn’t just a relic; it was the heart of Tarnoch’s monstrous engine. The thought of it, feeding on those who had vanished, on the poor souls who had occupied Room 404 before her, filled her with a venomous fury. “There’s only one way to stop it, isn’t there?” Her gaze, hardened with resolve, met Jorik’s. “We shatter that. We break the core.” Jorik nodded slowly, his cracked lips setting into an unyielding line. “It’s the only way… to free them. To stop the Tithe. But it’s… heavily shielded. And protected.” Before he could elaborate, a clatter echoed from above. Osenya instinctively tensed, ready to defend. From a ventilation grate high up the masonry, a figure dropped, landing with a deft roll upon the spongy moss. Nadina Rost, her apron streaked with soot and grease, hauled a bulging hemp sack down after her and let it crash onto the growth. It landed with a dull thud, the contents shifting with a clink of metal. “Took you two long enough,” Nadina said, her voice unusually calm despite the frantic escape. Her gaze swept over Jorik’s wound, a flicker of concern in her usually hard eyes. “Wardens are still tearing the shafts apart. But I bought you some time. And brought you some presents.” She kicked the sack lightly. “Stolen blasting charges. From the slag mines. Enough to turn the Blackloom into nothing but coal dust and scrap metal. Are we doing this, then? Are we burning the whole damn thing down?” As if in response, the great Resonator flared with a sudden, searing surge of green illumination. The raw energy within it intensified, thrumming through the air, and from its polished surface, a familiar face began to project, shimmering into existence. It was the head overseer, his cruel, unblinking eyes, thin lips, and sharp cheekbones rendered in pale, harsh brilliance. Yet the projection twitched unnaturally. Beneath the familiar visage, geometric copper tracks flickered, the planes of his cheek warping into the unyielding plate of a mechanical construct. The light swelled, and his projected mouth opened, a metallic hum replacing speech, his face, cold and terrible, now completely devoid of anything human.

The Sunken City