The stench of ozone and scorched copper filled Vessera Hale’s subterranean workshop, mingling with the perpetual damp earth-smell. A crack, loud as a thunderclap, tore through the calcified ceiling directly above her alembic, spraying plaster dust and chunks of ancient brick onto her meticulously arranged retorts. She barely had time to curse, shoving Pip, her young assistant, behind a worktable before a monstrous form, half-shattered mineral growth and sinew, crashed through the new gaping hole. It was a silica-stalker, unlike any whispered of in the taprooms of the Shroud-Borough. Its left flank shimmered with jagged, translucent growths, still oozing the viscous, iridescent ichor of accelerated transformation. Its right arm terminated in an edge of vitreous quartz, twitching with uncontrolled spasms. One remaining eye, a fragmented ruby, fixed on Vessera with an animalistic snarl. “Stay down, Pip!” Vessera barked, snatching a heavy bronze pestle from her workbench. The creature, already wounded, scrabbled on the floor, dragging its shattered bulk forward. Just as it lunged, a figure stepped through the debris-laced fog that now poured from the ceiling aperture, moving with an unnerving grace. A flash of polished steel, too swift to follow, and the beast choked, its ruby eye dimming as it collapsed, a deep, precise wound blooming between its calcified ribs. Korien Vast. Even here, in the grime and chaos of her illicit lab, he looked impossibly pristine. His coat, the color of twilight mist, bore no speck of dust. A silver-hilted rapier, still dripping a single bead of the creature’s viscous ichor, was sheathed with a soft *click*. His gaze, sharp and knowing, swept over Vessera, then the cowering Pip, before settling on the fallen monstrosity. “A rather inconvenient houseguest, wouldn’t you agree, Doctor Hale?” Korien’s voice, a smooth baritone, offered no apology for his sudden, dramatic entrance. It merely stated fact, laced with an old, familiar mockery that ignited a low burn in Vessera’s gut. Her pride, always a brittle thing, felt like shattered glass under his regard. “What brings the esteemed Lord Vast to my… humble abode?” The words scraped, dry and sharp, past her lips. She hated the tremor she couldn’t quite hide, hated the way her hands tightened around the pestle, a useless weapon against a man like him. Korien offered a small, humorless smile. “A matter of shared interest, perhaps. Or, more accurately, a mutual irritation.” He gestured with a gloved hand, and two hulking figures, clad in the drab grey of the Vast Merchant Guild, emerged from the lingering fog above, carefully lowering a heavily reinforced iron chest through the hole. It landed with a dull thud, rattling the remaining flasks on Vessera’s shelves. “A gift,” Korien said, as if presenting a trinket. He opened the chest with a key from his coat pocket. Inside, nestled on velvet, lay a fortune in gold coin, glittering even in the dim lamplight. Beside it, cushioned on a bed of dark, preserved herbs, was a stalker's core. It was unnaturally large, the size of a man’s fist, and pulsated with a faint, internal luminescence, its surface a mosaic of perfectly faceted, obsidian-dark facets. Pip hitched his shoulders behind the bench. Vessera kept her chin rigid, though her fingers dug into the bronze pestle. Not for the gold, though the sight of it made her practical mind whirl with possibilities for reagents and safer hideouts. But for the heart. It was a specimen of breathtaking, grotesque beauty, perfectly intact, clearly harvested with incredible care and preserved with unknown esoteric mastery. “You see,” Korien continued, his eyes never leaving Vessera’s, “the creatures are becoming… bolder. They infest the under-tunnels now, even breaching the lower districts of the Schola’s Periphery. My merchants lose goods, and sometimes, unfortunate porters. This particular specimen,” he gestured to the fallen Glass-Walker, “was a scout. Seeking out weaknesses in the old Guild structures, I presume. I’m simply… expediting its research.” He paused, letting the implication hang. “The Wardens are useless, as always. They concern themselves only with the grander pronouncements from the Alabaster Schola, not the mundane horrors affecting the citizens. But you, Vessera, you have… a certain reputation for understanding the mundane horrors. And for finding solutions where others only see obstacles.” Vessera’s hackles rose. The praise was a trap, she knew it. Korien Vast had orchestrated her ruin once, spinning gilded lies that saw her stripped of her academic standing, expelled from the very institution she had dedicated her life to. She was a pariah, operating on the fringes, constantly hunted by Provost Nymm’s shadowy agents. The idea of accepting anything from him, especially patronage, was anathema. “And what, precisely, do you expect in return for this… generosity, Lord Vast?” she asked, her voice tight with suspicion. She would rather starve than owe him anything. “A cure,” he stated simply, as if asking for a cup of tea. “Or at the very least, a method to contain these… evolutionary leaps. The crystalline affliction, you called it, didn’t you? I recall your rather passionate, if ultimately unsubstantiated, theories presented at the Grand Convocation, just before your… unfortunate departure.” His tone was light, but the barb struck home, precisely where it hurt the most. Pip tugged her coat sleeve, knuckles white. The boy's younger kin hid in the deeper tunnels, skin already developing the vitreous sheen of petrification; that gold could purchase passage beyond Ghest's fog, perhaps buying a season of survival. Her pride locked every tendon taut. Yet Pip's tugging hand ground against her stubbornness, eroding the refusal that rose to her throat. She was a researcher, damn it, not a martyr to a dead reputation. And that heart… it called to her, an enigma promising answers. Reluctantly, she stepped forward, her fingers trembling slightly as they reached for the obsidian heart. When her skin brushed its glassy surface, an icy sting bit through her fingertips. The heart pulsed, not with a biological rhythm, but with a complex, rhythmic thrumming of pure alchemical energy. It was a signature she knew, though she wished she didn’t. Potent, volatile, and profoundly *unnatural*. This wasn’t a natural mutation accelerated by the Shroud-Borough’s miasma. This was *guided*. *Engineered*. The intricate, layered resonance spoke of a high-tier artificer, not random environmental factors. A burning question ignited in her mind, eclipsing even her animosity for Korien. Who was creating these monsters? Who had the knowledge, and the audacity, to wield such devastating transmutative power? Korien leaned in then, his face inches from hers, his breath a cool whisper against her ear. His smile, when it came, was not one of gratitude, but of a predator savoring its prey. “I know exactly what illegal experiments you are hiding in these shadows, Vessera.”

The Glass-Walker's Heart