5. The Reign Title Trap Springs

The capital received them not with welcome but with silence. The northern gate had been closed for hours by the time Qin Huan, Hei San, and Lu Wenyuan reached the outer wall, their robes caked with mud, their faces raw from pine branches and panic. They slept in a drainage ditch until dawn, when the vegetable carts began rolling toward the city and the guards, drowsy and bribable, let them slip through among the turnip sellers.

Qin Huan’s shop was no longer safe. Neither was the coffin maker’s workshop, nor any of the taverns where they had whispered their plans. Xiao Zhen’s soldiers had searched the pagoda, found the tunnel, and followed it to the hillside. By midday, every ward captain in the Outer City would have a description of three men: one middle-aged and hunched, one broad-shouldered and scarred, one thin and nervous in a scholar’s robe. The censor’s net was spreading.

They needed shelter. They needed time. Most of all, they needed to read every document in Zhang Jinyan’s archive before Xiao Zhen’s men caught up with them.

Hei San led them to a place Qin Huan had never seen: a debtors’ prison near the Eastern Depot, where the lending house kept a back room for storing confiscated goods. The room had no windows and only one door, which Hei San bolted from the inside. The walls were lined with pawned furniture and rolled carpets, the air thick with the smell of mildew and old cedar. A single oil lamp provided the only light.

“We have perhaps two days,” Hei San said. “The lending house sends a clerk here once a week to inventory the goods. He came three days ago. We’re safe until he returns.”

Qin Huan emptied the satchel onto a lacquered table that had once belonged to a bankrupt merchant. The documents spilled out in a cascade of yellowed paper and red official seals. He sorted them into piles: the genealogy memorial, the letters between Xiao Zhen and his co-conspirators, the altered genealogical entries, the bribe receipts. Each pile was damning in its own way, but together they formed a case that could bring down a dozen of the most powerful Han officials in the Qing court.

“The genealogy is the key,” Lu Wenyuan said, his voice steadier now that he had papers to read and scholarship to perform. He had always been calmer with texts than with people. “Look at this. Xiao Zhen didn’t just alter a few names. He rewrote the entire descent from the Aisin Gioro clan back to the Yellow Emperor. He fabricated marriages, invented ancestors, even forged tomb inscriptions. The work must have taken years.”

“And Zhang Jinyan found out,” Qin Huan said. “How?”

Lu Wenyuan scanned the letters. “He was Minister of Works. He had access to construction records, tomb registrations, ancestral temples. He must have noticed discrepancies between the official genealogy and the physical evidence. A tomb that was supposed to be here but was actually there. An ancestor whose dates didn’t match. Once he started looking, the whole fabrication unraveled.”

“So he compiled the evidence and prepared a memorial,” Hei San said. “And Xiao Zhen discovered what he was doing.”

“Worse,” Lu Wenyuan said, holding up a letter. “This is from Zhang Jinyan to his wife, written a week before his arrest. He says he has entrusted a copy of the evidence to a trusted friend, and that if anything happens to him, the friend will deliver it to the throne. But then he crossed out the friend’s name and wrote: ‘The friend is no longer trustworthy. I must find another way.’”

Qin Huan’s blood chilled. “The poetry anthology. He hid the evidence in the poetry anthology.”

“No,” Lu Wenyuan said. “He hid the location of the evidence in the poetry anthology. The book wasn’t the treasure. The pagoda archive was. And Xiao Zhen knew the archive existed — he just couldn’t find it without the cipher.”

The pieces were falling into place with terrible clarity. Zhang Jinyan, knowing his arrest was imminent, had encoded the location of his archive into a poetry anthology using invisible alum ink. He had then arranged for the book to be included in Grand Secretary Liu Zhengzong’s collection, betting that the Qing censors would see only the missing reign title and overlook the chemical secret hidden in the margins. The sedition trial had been a smokescreen — but not Zhang Jinyan’s smokescreen. Xiao Zhen’s.

“Xiao Zhen denounced Zhang Jinyan for the missing reign title because he needed Zhang arrested before the memorial reached the throne,” Qin Huan said. “But he couldn’t execute Zhang outright — Zhang was a former Minister, too prominent. So he arranged the exile to Ningguta, hoping Zhang would die on the journey. And he began searching Zhang’s confiscated property for the archive.”

“But he didn’t find it,” Hei San said. “Because we did.”

“And now he knows we found it.” Qin Huan looked at the stacks of paper. “So what do we do with this? We can’t walk into the Board of Rites and present a memorial. We’re fugitives. Xiao Zhen has soldiers. The moment we show our faces, we’ll be arrested as grave robbers, and the documents will be burned before anyone reads them.”

Lu Wenyuan was silent for a long moment. Then he said, “We need a patron. Someone with enough rank to present the memorial to the emperor, and enough reason to hate Xiao Zhen to risk doing it.”

“Do you know such a person?”

“I know of one. Prince Gong, the emperor’s uncle. He’s a Manchu noble, not a Han scholar. He has no reason to protect Xiao Zhen’s faction, and every reason to expose a conspiracy to falsify the imperial bloodline. If we can reach him, he might listen.”

“A book peddler, a debt collector, and a failed scholar walk into a prince’s mansion,” Hei San said flatly. “They’ll be thrown out before they reach the gate.”

“Not if we have something the prince wants.” Qin Huan held up the genealogy memorial. “This is not just evidence of a crime. It’s a weapon. Prince Gong is locked in a power struggle with the Hanlin Academy faction. Xiao Zhen’s group wants to Sinicize the Qing court, to make it more acceptable to Han scholars. Prince Gong wants to preserve Manchu supremacy. This memorial would destroy Xiao Zhen’s faction overnight. The prince would owe us everything.”

The plan was dangerous. Prince Gong was known for his temper and his ruthlessness. If he decided the documents were forgeries, or if he decided that killing the messengers was simpler than protecting them, they would die in his dungeons. But every alternative led to Xiao Zhen’s soldiers and a quick execution for tomb robbery.

“We go tonight,” Qin Huan said. “Lu Wenyuan writes a letter of introduction, citing his work for Magistrate Gao. Hei San and I will deliver the letter and a sample document — one page of the altered genealogy. If the prince is interested, we request an audience. If he’s not, we run.”

“And if he’s interested but decides to kill us anyway?” Hei San asked.

“Then we die knowing Xiao Zhen dies with us.”

Lu Wenyuan wrote the letter with a hand that trembled only slightly. He used his best calligraphy, the formal style he had perfected for the examinations, and sealed it with the borrowed authority of Magistrate Gao’s name. The sample document they chose was a page from the fabricated genealogy, showing a clearly impossible descent line — a man supposedly born a century after his own father’s death. It was the kind of error that a scholar would spot instantly, and that a prince would understand as the insult it was.

At dusk, Qin Huan and Hei San left the debtors’ prison. Lu Wenyuan remained behind, ostensibly to guard the remaining documents, but Qin Huan noted the way the scholar’s eyes darted toward the door as they left. The doubt had not left him. Lu Wenyuan was still the only one who had known Bi Xi’s exact location at the teahouse. And the bloodstain on the book remained unexplained.

Prince Gong’s mansion stood in the western quarter of the Inner City, behind walls so high that only the curved eaves of its great hall were visible from the street. The gate was guarded by four bannermen in full armor, their halberds crossed. Qin Huan approached with his best merchant’s bow, the letter extended in both hands.

“A message for His Highness Prince Gong,” he said. “From the office of Magistrate Gao of the Board of Rites. A matter of grave urgency concerning the imperial genealogy.”

The guards exchanged glances. The phrase “imperial genealogy” was not one they heard often, and it carried weight. One of them took the letter and disappeared through a side gate. Qin Huan waited, his heart hammering. Beside him, Hei San stood like a statue, his scarred face impassive.

The guard returned after what felt like an hour. “His Highness will see you in the eastern study. Leave your weapons at the gate.”

They surrendered their knives and were led through a series of courtyards, each more lavish than the last. Peonies bloomed in ceramic urns. Goldfish swam in marble pools. The prince’s wealth was on display everywhere, a statement of power as clear as any army.

The eastern study was a small room paneled in dark wood, its shelves lined with books that looked rarely touched. Prince Gong sat behind a desk of carved rosewood, a man of perhaps fifty with a face that was equal parts intelligence and cruelty. His eyes were black and steady, a hawk’s eyes, and they fixed on Qin Huan with unnerving intensity.

“You claim to have evidence of a crime against the imperial bloodline,” the prince said without preamble. “Show me.”

Qin Huan produced the sample page and laid it on the desk. Prince Gong studied it in silence. His expression did not change, but his knuckles whitened where he gripped the paper.

“This is the official genealogy?” he asked.

“A copy of it, Your Highness. Made by the Hanlin Academy archivists. The original entries in the Imperial Archives have been altered to match. The Minister of Works Zhang Jinyan discovered the discrepancies before his arrest and preserved the evidence.”

“Zhang Jinyan is a traitor who omitted the reign title from a published work,” the prince said. “Why should I believe his documents?”

“Because the documents prove why he was denounced,” Qin Huan said. “The omission was a pretext. Zhang Jinyan was silenced to prevent this evidence from reaching the throne. The men who denounced him are the men who altered the genealogy.”

Prince Gong set the paper down. “You have more?”

“An entire archive, Your Highness. Letters, receipts, the original unaltered genealogy, and Zhang Jinyan’s own memorial detailing the conspiracy. We are prepared to deliver everything to you in exchange for two things: an audience before the emperor, and protection from the censor Xiao Zhen.”

The prince’s eyes flickered at the name. “Xiao Zhen. The man who denounced Zhang Jinyan.”

“The man who leads the conspiracy.”

A long silence followed. Prince Gong stared at the paper, and Qin Huan could almost see the calculations running behind the hawk’s eyes. Xiao Zhen was a powerful man, the leader of a Han faction that had been gaining influence at court. Bringing him down would reshape the political landscape. It would also earn Prince Gong the emperor’s gratitude — and the emperor, young and insecure, was known to reward loyalty lavishly.

“I will see the emperor tonight,” the prince said. “Privately. If the emperor believes your evidence, I will arrange an audience. If he does not, you will be handed to the Board of Punishments as forgers and extortionists.”

Qin Huan bowed. “We accept the risk.”

They returned to the debtors’ prison to find Lu Wenyuan pacing in nervous circles. His face lit up with relief when they entered, then fell when they described the prince’s terms.

“He could betray us,” Lu Wenyuan said. “He could take the documents and have us killed.”

“He could,” Qin Huan agreed. “But he won’t. The documents are more valuable to him with living witnesses to authenticate them. Dead witnesses can’t testify.”

They spent the night organizing the archive, arranging the documents in the order that told the clearest story: the original genealogy, the altered version, Zhang Jinyan’s discovery of the discrepancies, the letters between Xiao Zhen and his co-conspirators, the bribe receipts, and finally the memorial that should have reached the emperor. The story was damning. It was also, Qin Huan realized, incomplete. One document was missing from the archive: the letter Zhang Jinyan had written to his wife, the one that mentioned an untrustworthy friend. Lu Wenyuan had read it aloud, but now it was nowhere to be found.

“Where is it?” Qin Huan asked.

Lu Wenyuan looked up from his sorting. “The letter about the friend? I don’t know. I put it with the others.”

“It’s not here.”

They searched the table, the floor, the satchel. The letter was gone. Qin Huan’s mind flew to a single, terrible conclusion: Lu Wenyuan had hidden it. The letter that named the untrustworthy friend. The friend who had betrayed Zhang Jinyan. The friend whose name Zhang Jinyan had crossed out.

“You,” Qin Huan said quietly. “You’re the one Zhang Jinyan couldn’t trust. You knew him. You were his student.”

Lu Wenyuan’s face went white. “I never met Zhang Jinyan.”

“You’re a juren who failed the metropolitan examination four times. You studied at the Hanlin Academy. Zhang Jinyan was a Hanlin graduate. He mentored young scholars. You were one of them. That’s how you knew the book would contain a cipher. That’s how you knew to look for the trigrams.”

“No,” Lu Wenyuan whispered. “No, Qin Huan, you’re wrong.”

“Then where is the letter?”

Hei San moved to block the door. His hand rested on the knife he had retrieved from the gate guards, and his expression was that of a man who had killed before and would again.

Lu Wenyuan looked from one to the other. His composure, maintained through days of fear and flight, finally shattered. “Yes,” he said. “Yes, I studied under Zhang Jinyan. But I didn’t betray him. When Xiao Zhen began investigating Zhang’s work, Zhang came to me. He knew I was poor, that I’d failed the examinations, that I needed money. He paid me to make copies of the genealogy documents, in case the originals were seized. I was the one who carried the archive to the pagoda vault. I was the one who sealed it in.”

“Then why cross out your name?” Hei San demanded.

“Because Zhang knew Xiao Zhen was watching me. He knew I might be arrested. If I didn’t know where the archive was, I couldn’t reveal it under torture. He crossed out my name to protect me, not to condemn me.”

“And the bloodstain on the book?” Qin Huan asked.

“Zhang’s. He cut his finger on the metal rubbing when he inserted it between the pages. I saw the stain and recognized it. I didn’t say anything because I didn’t want you to know I knew him. I didn’t want you to suspect me.”

Qin Huan stared at him. The explanation made sense. It even made noble sense — a master protecting his student, a student carrying his master’s secret. But it did not explain Bi Xi.

“The teahouse,” he said. “Did you tell anyone Bi Xi would be there?”

“I swear I didn’t. I swear it on my life.” Lu Wenyuan’s voice was cracking. “I didn’t kill Bi Xi. I would never —”

A knock on the door cut him off. Three short raps, followed by a pause, then two more. The signal they had arranged with the debtors’ prison clerk.

Qin Huan opened the door a crack. A boy stood in the corridor, a servant in Prince Gong’s livery. He carried a letter sealed with the prince’s personal chop.

“From His Highness,” the boy said, and vanished.

Qin Huan broke the seal and read the letter. When he looked up, his face was unreadable.

“The emperor will see us. Tomorrow, at the hour of the dragon, in the Hall of Preserving Harmony. Prince Gong will present the evidence. We are to attend as witnesses.”

Hei San let out a breath. Even Lu Wenyuan looked faintly hopeful.

“And the emperor’s reaction?” Hei San asked.

“The letter doesn’t say. But Prince Gong wouldn’t arrange an audience if the emperor wasn’t interested.” Qin Huan folded the letter and tucked it into his sleeve. “We prepare tonight. We practice what we’ll say. Tomorrow, we either walk out of the Forbidden City as free men, or we don’t walk out at all.”

They worked until the oil lamp guttered. Lu Wenyuan wrote out a formal testimony, detailing everything he had done under Zhang Jinyan’s direction. Hei San memorized the names of Xiao Zhen’s co-conspirators, ready to identify them if called. Qin Huan organized the documents in the order they would present, rehearsing the story in his head until it was as smooth as a polished stone.

At last, Hei San fell asleep on a pile of carpets. Lu Wenyuan retreated to a corner, his eyes open in the darkness. Qin Huan sat at the table, the archive spread before him, and thought about Bi Xi.

The young alchemist had died for this. His lens had revealed the hidden ink. His knowledge had decoded the cipher. And someone had slipped oil of bitter almonds into his tea, ending his life before he could see the truth he had helped uncover. Xiao Zhen’s man, Lu Wenyuan had said. The man in riding boots. But the riding boots had not been seen at the teahouse. Only Bi Xi had been there, watching Shen’s shop, and the poisoner had known exactly where to find him.

Qin Huan looked at Lu Wenyuan’s still form. The scholar’s story held together — but so did a spider’s web. And Qin Huan had the feeling, growing stronger with every hour, that he was the fly.

The morning came gray and cold, a damp wind blowing down from the north. Qin Huan dressed in the best robe he had salvaged from his shop, a dark brown silk with only one visible patch. Hei San wore his usual tunic but had cleaned the mud from his boots. Lu Wenyuan looked almost like a scholar again, his queued hair neat, his borrowed robe brushed free of dust.

They walked to the Forbidden City in silence, three small figures dwarfed by the towering red walls. The guards at the Meridian Gate examined Prince Gong’s summons and waved them through. Inside, the courtyards stretched endlessly, each one a statement of imperial power. Eunuchs in blue robes hurried past. Bannermen in yellow jackets stood motionless at every door. The three sworn brothers walked deeper into the heart of the empire, their footsteps echoing on the marble flagstones.

The Hall of Preserving Harmony was vast and cold, its ceiling lost in shadow, its floor a mirror of polished stone. At the far end, on a raised platform, stood the Dragon Throne. And before the throne, waiting with the patience of a predator, stood Xiao Zhen.

He was dressed in his censor’s robes, the square badge of a fourth-rank official gleaming on his chest. His face was calm, almost serene, and when he saw them enter, he smiled.

“Ah,” he said. “The grave robbers arrive.”

Behind them, the doors of the hall slammed shut.