Ling Liyu wrote the first document like he was designing an instruction manual.
No flourishes. No emotion. No room for interpretation.
House Steward Ma's voice, not his.
He stared at a blank sheet of paper until his mind stopped wanting to be clever, then began.
Notice to all courtyards:
Due to recent inconsistencies in supply allocation records, the household will conduct a routine review of oil and salt distribution.
All courtyards are to ensure their lamp oil usage and requests are recorded clearly.
In three days, the minister's office will receive a summary report from the storeroom and maintenance steward.
Any discrepancies will be corrected according to household rules.
Routine review. Recorded clearly. Summary report. Corrected.
Nothing accusatory.
Nothing dramatic.
Boring.
Perfect bait.
He rewrote it once to remove a phrase that sounded too much like "investigation." Replaced it with "review." He rewrote again to make sure the rhythm matched how a steward would actually write—slightly stiff, slightly repetitive, anxious to sound official.
Then he folded it and set it aside.
The second document was for the Wang household.
That one required different caution. Not because of romance—he refused to allow his mind to frame it that way—but because a single wrong word could turn "proper channels" into "improper contact."
He wrote in his father's tone. Cold, correct, minimal.
To the Wang household secretary:
Minister Ling Shouyi acknowledges receipt of the transport summaries. The observed irregularities merit verification against original dispatch and warehouse receipts. If appropriate, please provide one additional set of originals or certified copies for comparison, to be reviewed privately and returned through secure channel. This inquiry is solely for efficiency and prevention of loss.
Efficiency. Prevention of loss.
Nothing about suspicion. Nothing about blame. Nothing about people.
Numbers, not knives.
He sealed it in plain wax and placed it in a second envelope, unmarked.
Then he sat back and flexed his fingers, which had cramped from brushwork.
Outside his window, lantern light painted the courtyard in soft squares. The residence was quiet, but the quiet felt different tonight—tighter, like someone had pulled a net over it.
He called Auntie Zhou and handed her both documents with different instructions.
"The notice goes to House Steward Ma," he said. "He should post it tomorrow morning like an ordinary administrative announcement."
Auntie Zhou nodded.
"The Wang household letter goes to Father's clerk directly. Not to any runner. Not to the outer gate."
Auntie Zhou's eyes sharpened. "Yes, Second Young Master."
After she left, Liyu didn't sleep.
He lay in bed and listened to the house, because tonight the house was listening back.
He heard footsteps in the corridor outside his courtyard at the second watch—too light for a guard, too deliberate for a maid.
He heard a faint creak near the outer screen.
Then silence.
His pulse slowed instead of spiking.
The old Ling Liyu might have shouted for someone, demanded a lantern, punished the first servant he saw.
The new Ling Liyu understood something the modern designer in him had always known: when you want to catch a flaw, you don't smack the product. You observe the failure.
He remained still.
In the morning, he would ask Auntie Zhou—casually—whether anyone had approached his door last night.
And he would see her eyes flicker.
Because she would know too.
Morning came.
The notice was posted.
Servants gathered around it in little clusters, pretending not to read while reading.
Routine review of oil and salt distribution.
Three days.
Summary report to the minister's office.
Discrepancies corrected.
Boring words.
Sharp teeth.
By midmorning, the household had reacted exactly as Liyu expected: everyone behaved slightly better. Kitchen helpers measured more carefully. Maintenance staff wrote clearer notes. Even Steward Fang's office moved with a touch more nervous precision.
When systems are announced, people become their best selves—briefly.
The point wasn't to fix behavior.
The point was to see who moved strangely.
And someone did.
Around noon, Chen Yao appeared at Liyu's door, face pale but controlled.
"Second Young Master," he said quietly, "Qinghe was released."
"As Father planned," Liyu replied.
Chen Yao nodded. Then, after a beat, "He was reassigned to the outer laundry yard."
Outer laundry yard.
A place full of movement. Water, cloth, deliveries. Easy to hide in. Easy to pass small bundles. Easy to meet runners without raising suspicion because laundry supplies came and went constantly.
Perfect.
"Was he angry?" Liyu asked.
Chen Yao hesitated. "He smiled."
Liyu's stomach tightened.
A smiling man in a trap was either confident or desperate.
"Did he say anything?" Liyu asked.
Chen Yao lowered his voice. "He asked me if Second Young Master truly cares about oil."
Liyu held still. "And you?"
Chen Yao swallowed. "I said Second Young Master cares about many strange things now."
Good.
Chen Yao leaned closer, voice barely audible. "Second Young Master… I think he knows he's being watched."
Liyu nodded slowly. "He knows. That's fine. Knowing doesn't mean escaping."
If anything, knowing created pressure. Pressure made mistakes.
Later that afternoon, the first mistake arrived.
Not inside the household.
At the side gate.
A market runner appeared with a bundle addressed to no one, "mistakenly" left for pickup. A laundry worker signed for it because the paper showed "soap cakes" and "cloth pins."
A normal delivery.
Until Old Wu, stationed near the passage under the excuse of "checking locks," saw the runner's face.
Scar under left ear.
The same runner from the oil handoff.
Old Wu didn't stop him. Not yet.
He followed at a distance, slow as shadow.
And by the time the runner reached the outer laundry yard wall, Qinghe was already there, hands tucked into his sleeves, posture relaxed, as if he'd been waiting for cloth to dry.
Old Wu saw the handoff.
A small bundle slid from runner to servant as easily as a breath.
Then they separated.
And that—finally—was content.
Not the oil jar.
Not the route.
A message delivered directly.
Old Wu reported it to Ling Moli before sunset.
Ling Moli came to Liyu's room that night without knocking, face hard.
"He took a bundle," Moli said.
"Qinghe?" Liyu asked.
Moli nodded. "From the same runner."
Liyu's pulse sharpened. "Did we intercept it?"
Moli's lips curled. "Not yet."
"Why not?"
"Because Father said watch who moves," Moli snapped. "And because if we take the first bundle, we learn only that he receives bundles. If we let him act, we learn where he brings them."
That was… maddeningly smart.
It was also exactly what Ling Shouyi would choose.
Liyu exhaled through his nose. "Then we follow him next."
Moli's gaze burned. "Old Wu is already assigned."
"Good."
Moli paused, then said, voice lower, "He brought the bundle into the east service corridor."
Liyu went still.
East service corridor was closer to the main hall and the minister's study. It meant Qinghe wasn't just passing messages outward.
He was bringing something inward.
Moli continued, teeth clenched, "He didn't go to my courtyard. He didn't go to the storeroom. He went toward House Steward Ma's office."
Liyu's stomach dropped.
House Steward Ma.
Competent. Loyal. Not creative.
But loyalty could be circumvented. Competence could be used.
If Qinghe was bringing bundles toward Ma's office, then either Ma was compromised—or someone in Ma's staff was.
And if the network could touch Ma's office, it could touch the minister's information flow.
This was bigger than oil.
Bigger than a thief.
Liyu looked at Moli. "We intercept the next bundle."
Moli's eyes narrowed. "Father didn't say—"
"I know what Father said," Liyu cut in quietly. "But if they're moving toward Ma's office, the next step is documents. Real ones."
Moli stared at him for a long beat.
Then he clicked his tongue, angry at being persuaded. "Fine. Next bundle. We take the runner."
"And we take the bundle," Liyu added.
Moli's mouth twisted. "Obviously."
He turned to leave, then paused at the door.
"You wrote the notice," he said.
"Yes."
"It worked."
"Yes."
Moli's ears reddened slightly, as if acknowledging his brother's competence was embarrassing.
"Tch," he said. "Don't get proud."
Liyu's voice softened despite himself. "I won't."
Moli left.
Liyu sat back down at his desk and stared at the empty paper.
In three days, the minister's office would receive a summary report.
That was the bait.
The snake was moving.
And somewhere inside House Steward Ma's office, a second snake might already be coiled, waiting for the right document to touch.
Liyu picked up his brush and wrote one line, small and tight:
If they're coming inward, the stakes just changed.
Then he extinguished the lamp and lay down, because tomorrow would require steadiness, and he couldn't afford to be tired when the house finally chose which side it belonged to.