A hacking cough tore through Cen Bai’s chest, rattling bones that felt like brittle reeds. The taste of copper bloomed on his tongue, hot and metallic, followed by a viscous warmth trickling past his lips. He blinked, the gloom of the thatched hut slowly yielding to the filtered light of a perpetual twilight. Outside, a chorus of guttural croaks and the buzzing of iridescent swamp flies provided a constant, nauseating lullaby. “Young Lord!” a voice shrilled, thick with terror. “Young Lord, it’s here again! The Horned Scourge!” Cen Bai pushed himself up, each movement an agony, a chorus of creaks from his joints. His vision swam, then cleared, focusing on a figure cowering in the doorway: a young farmhand, skin grey with dread, pointing a trembling finger. The air, already heavy with the stench of decay and stagnant water, now carried a new, sharper tang – acrid, earthy, and distinctly insectile. Cen Bai recognized it instantly, a scent memory from a thousand infestations. Through the gaping hole in the wall, where a door might once have hung, something vast scuttled. It was a myriapod, unlike any Cen Bai had ever encountered. Eight feet long, its segmented body a gleaming obsidian, each leg tipped with needle-sharp claws that gouged furrows into the packed earth. Two antennae, thick as a man’s wrist, twitched from its head, culminating in wicked, cerulean-tipped horns. Its mandibles clicked, a sound like grinding stone, as it explored the threshold of his pitiful dwelling. The creature was less an animal and more a mobile nightmare, revered by the local folk as a divine curse, a manifestation of the swamp’s malevolent spirit. Cen Bai, however, saw only an oversized arthropod. Its spiracles, the respiratory openings along its sides, were clearly visible, pulsating with each breath. Its exoskeleton, though formidable, was just chitin. Its venom, implied by the azure tips, was merely a complex protein. He saw a pest, nothing more, albeit one of impressive scale. “Stay back,” Cen Bai rasped, his voice a ghost of its former clarity. He ignored the boy’s terrified whimpers and the creature’s ominous approach. His gaze swept the derelict hut. A pile of dried weeds, collected by the few remaining retainers for fuel, lay near the crumbling hearth. Among them, he spotted the pale yellow flakes of brimstone-grass, known to the locals for its foul smell when burned. Beside it, a forgotten sack of crushed chalk-rock, used to whitewash walls before their clan’s fall. His mind, sharp and analytical despite his body’s betrayal, instantly processed the data. Brimstone and quicklime. Both readily available, both potent. He picked up a handful of yellow leaves, crushing them to a fine powder between his fingers, then folded in a scoop of chalk dust with practiced precision. The blend wasn't perfect, not the refined insecticide he’d once wielded, but it would do. It was crude, but chemistry, even primitive, was universal. The horned crawler paused, its antennae flicking towards him, sensing his unnatural calm. Its many legs stilled, poised to strike. Its head rose, revealing iridescent emerald eyes that reflected the dim light. The boy let out a choked cry, convinced Cen Bai was about to be devoured. Cen Bai took a deep, rattling breath, ignoring the sharp iron burn in his ribcage. He raised his hand, cupping the coarse dust. “A common ground-dweller,” he muttered, his voice surprisingly steady, a clinical detachment settling over him like a shroud. “Susceptible to desiccation and respiratory irritants, like all its kind.” Then, with a sudden, powerful exhalation, he blew the powdered mix directly at the beast. The crude dust, a swirling cloud of yellow and white, caught the air current and surged forward, right into the exposed spiracles of the massive creature. The creature recoiled, its armored ring-segments thrashing violently. Its obsidian shell seemed to twitch. A wet whistle, sharp and suffocating, hissed from its spiracular valves. Its legs churned frantically, tearing up the earth, but its movements were becoming erratic, uncoordinated. The sulfurous volatile compounds inflamed delicate tracheal tissues, while the alkaline powder drew moisture and clogged the spiracle slits. Deprived of oxygen, the crawler began to convulse, its colossal frame slamming against the hut’s remaining walls, sending thatch and mud flying. Its emerald eyes glazed over. Within moments, the thrashing subsided. With a final, shuddering tremor, the armored vermin lay still, a rigid heap on the trampled floor. The youth, who had squeezed his eyes shut, slowly opened them, then gaped. He stared at the motionless carcass, then at Cen Bai leaning against a timber post, wiping red foam from his chin. The boy collapsed forward, forehead against the dirt. “Fourth Young Master… a sorcerer! A master of spirits!” he stammered, awe replacing his panic. Cen Bai merely grunted. Sorcery. Spirit-mastery. Ignorant superstitions. He knew the truth: his modern knowledge of entomology and chemistry, applied crudely, was simply vastly superior to their ancient fears. As he straightened, a sharp ache in his lungs, he evaluated his new body. It was a wreck. The Cen Clan’s fourth son, exiled to this rotting basin, was a husk, wracked by a consumption that would have killed any normal man weeks ago. But Cen Bai was not normal. He was a man reborn, or rather, re-diseased, into a world that saw a giant bug as a god. He looked around at the Qiling Miasma Basin – the choking fog, the putrid water, the sickly flora. This wasn’t exile; it was a slow-acting poison, a deliberate extermination. The ‘chronic illness’ he’d inherited, conveniently worsening after his family’s banishment, was just another weapon in the arsenal of his enemies. Prime Minister Yao Zong, the ‘queen bee’ of the capital, buzzing with corruption and false piety, had orchestrated this. Yao Zong and his clan, who had framed the Cen family for treason, had simply moved their pawns into place for the final cull. A slow, dangerous calm settled over Cen Bai. He saw it all with chilling clarity: the court, a festering nest of parasites, led by the Prime Minister, the primary vector of the infection. The noble clans, like worker ants, toiling and fighting amongst themselves, unaware of the queen’s true purpose. The Royal Edict of Eradication, no doubt being drafted even now, wasn’t a punishment; it was the final fumigation order. They intended to wipe his entire bloodline from existence. “Termites,” Cen Bai murmured, his gaze drifting to the silent, dead carcass. “That’s all they are. A colossal infestation, gnawing at the foundations of the realm, consuming everything in their path.” His pale lips curved into a chilling smile. His previous life’s mantra, once about ethical pest management, now warped into something far more brutal: *Exterminate. Eliminate. Eradicate.* He would treat them as he treated every infestation: systematically, ruthlessly, to the last living cell. Just then, an older maidservant burst into the hut, clutching a scroll sealed with imperial beeswax and red silk. Her jaw shook as she leaned against the ruined entrance. “Fourth Young Master… a rider from the capital. The Royal Summons has arrived. In three months, the decree takes effect. Three months, and the Imperial Army will purge the basin.”

The Exterminator's Diagnosis