The 'inspection tour' unfurled across the eastern plains, a spectacle of engineered indifference. Banners of the Xuanwu Guild—a stylized dragon grasping a crumbling column—billowed above ranks of laborers and scholars, all uniformed in slate-grey tunics. Leading them was a man of stiff, almost brittle movements, his long face set in rigid arrogance. Wei Zongyuan identified him from the hut’s shadowed entrance. “Elder Zhifeng. Head architect of the Xuanwu Guild. A renowned diviner of earth lines, and a personal favorite of Prince Dingyuan.” “An augur with an affinity for structural sabotage, I presume,” Yutang murmured, her gaze sharp on the retinue. They carried not only surveying tools but also heavy, lidded ceramic jars. She noted the way he pointed, not towards the main compound gate, but subtly towards the recently completed, earthen dam protecting the lowest residential section. “They’re here to ensure our continued bad karma,” Wei said, a dry rasp in his voice. “To see if your ‘fortifications’ can withstand the divine will.” He watched her, a silent challenge in his dark eyes. “What will they attempt?” “Observe their readings,” Yutang replied, moving to a small wooden scaffold she had erected beside the wall. “They won’t use black powder here; too crude, too obvious. They’ll target a critical hydrological point, something subtle that can be blamed on the ravine's inherent instability or, of course, disrupted feng shui.” She paused, resting a hand on the parapet. “My primary barrier is young, still settling. A well-placed corrosive agent could initiate a localized washout, leading to a cascade failure. The ensuing flood would devastate the lower works and be easily attributed to our ‘ill fortune’.” Wei’s lips curved into a thin smile. “A subtle touch. The Princes are learning.” “Or their architect is particularly devious.” Yutang turned from the window. “Commander, I need you to ensure the flow of the main aqueduct is diverted to the auxiliary conduit for the next six hours. And secure the eastern sluice gate to the waste basin. No one, not even my foremen, is to know the reason.” Wei raised an eyebrow, a flicker of understanding in his eyes. “You anticipate a trap, and you’re preparing a counter.” “I anticipate their method,” Yutang corrected, already moving towards her work table, where detailed plans of the dam’s outflow system lay spread. “The dam’s main relief flume is designed for a peak rainy season discharge, but the bypass culverts were built with an intentional margin for unexpected surges. I altered the geometry of the lower weir, deepening its sill and stone lining. It will act as a high-capacity bypass.” She pointed to a section of the blueprint. “When their corrosive agents breach the earthen base, the localized failure will generate a surge. But instead of cascading into the pits, the water will be forced through the modified spillway. It will appear to be a simple, if unusually violent, runoff discharge.” “And the saboteurs?” Wei asked, his interest piqued. “The bypass flume dumps directly into the deepest part of the silt basin, a newly reinforced pit originally cut for gravel wash,” Yutang explained, her finger tracing the parchment. “The basin’s only exit is a single, heavily barred grate, leading into the old, unused drainage tunnels. The current will carry anyone in the flood path directly into the basin, where they will be trapped.” Hours later, under the baking midday sun, the Xuanwu cadre, clad in grey ceremonial silks, approached the perimeter barrier. They performed an elaborate ritual, chanting ancient verses and scattering ‘blessed’ powders along the dam’s base. Beneath the flourish, Yutang tracked their actual work: quick, unobtrusive drops of small, dark packets into the fill, followed by the emptying of thick, pungent alkaline solvent from the jars. The solvent soaked the packed loam, dissolving the binding lime. Her estimates held true; the compound worked by gradual leaching, timed to yield only after the retinue had crossed back over the ridge. As the guild scholars concluded their prayers and turned back toward the perimeter palisade, the elder glanced once over his shoulder. A dull vibration traveled through the bedrock, faint enough to escape an untrained heel. But Yutang, observing from her platform, saw the micro-fractures propagate, the water pressure on the dam's weakened earth increasing. The moment had arrived. Suddenly, with a muted roar, a section of the dam’s base gave way. Not a catastrophic breach, but an isolated blowout, exactly along the seam she had reinforced behind. The water surged. Instead of tearing down the central slope into the labor barracks, it swirled into the widened relief culvert. The diverted current, powerful and swift, roared towards the waste basin, just as Yutang had planned. Several surveying apprentices, still collecting markers near the foot of the wall, lost their footing in the torrent. Their ceremonial robes, heavy with water, dragged them relentlessly towards the basin. Their shouts were swallowed by the rush of water as they tumbled headlong into the reinforced pit, the heavy iron grate clanging shut behind them. Zhifeng, who had lingered sixty paces back upon a dry ledge, stared in stiff disbelief. The flood was not the destructive torrent he had envisioned; it was a bizarre, contained deluge that had swallowed his men whole. He hurried down the berm, sallow-skinned, only to find Yutang waiting by the stone spillway, Wei Zongyuan and four guards stepping out from the trench flank with iron halberds drawn. The commander kept his gaze on the elder's hands. “Elder Zhifeng,” Wei said, smooth and flat, “a curious omen. The local earth spirits appear to have swallowed your surveyors whole.” The elder's mouth twitched. He stared at Yutang as though looking at a machine that had calculated his breath. She had known. She had not only known their exact method but had turned their weapon against them with chilling precision. His eyes darted to the waste basin, then back to Yutang’s impassive face. Her posture showed no triumph, only the dull appraisal of a technician checking water tables. Slowly, his hand went to an inner pocket of his robes. He pulled out a small, leather-bound ledger, its covers worn smooth. “This… this holds the real survey,” he stammered, parchment rustling in his grip. “The calculations. For the Qixing Pavilion. The Princes’ own figures. They are all here. The resonance calculations. The lye solvents. The march cadence for the Imperial Guard. Every ledger.” He extended it, his hand shaking. “It was meant to be my final, undeniable proof of my own genius, to be revealed when the time was right. But… I offer it to you. For my men. For my life.”

Sabotaging the Feng Shui