2. Seven Skulls Facing North

The tooth sat on Zhou Ming's desk like a accusation that had grown enamel and roots.

He had not slept. After discovering the molar in the lacquer box, he had sealed the storage tent with fresh evidence tape, stationed the night guard at the entrance with strict instructions to let no one pass, and retreated to his shipping-container office to think. The thinking had produced nothing but a headache that pulsed behind his left eye and a growing conviction that he was missing something obvious.

The character carved into the tooth's surface was precise, almost elegant. Under the magnifying lamp on his desk, Zhou could see the tool marks—fine, parallel striations that suggested a sharp metal point, possibly a dental pick or an engraving needle. The carver had known what they were doing. The strokes were confident, the proportions classical. This was not the work of an amateur or a vandal.

It was the work of someone sending a message.

The door of the shipping container swung open, and Lin Xia stepped inside without knocking. She was carrying two paper cups of coffee and wearing the same clothes she had worn the day before. Her eyes were sharp and bloodshot, and Zhou realized she probably hadn't slept either.

"I heard about the tooth," she said, setting one of the cups on his desk. "The night guard called me."

"I told him not to call anyone."

"He's seventy-three years old and terrified. He's calling everyone." Lin Xia pulled up a folding chair and sat down across from Zhou. "Let me see it."

Zhou pushed the magnifying lamp toward her. She leaned in and studied the molar for a long moment, her expression unreadable.

"Sheng," she said finally. "The same character from the stone platform. Survival, or to be left alive."

"Or to remain after others have perished."

Lin Xia looked up at him. "You think someone is threatening us."

"I think someone broke into a locked, sealed storage tent and left a human tooth inside a thousand-year-old artifact box. I think that someone knows more about this excavation than we do. And I think"—Zhou picked up the tooth and turned it over in his palm—"that this tooth didn't come from our site. Look at the root wear. This is modern, or at most a few decades old. Someone dug this up from a cemetery, or pulled it from a collection, or God knows what else."

"Or it belonged to someone they knew."

The words hung in the air between them. Outside, the cicadas were beginning their morning drone, the sound building like a wave preparing to break.

"Have you called the police?" Lin Xia asked.

"And tell them what? Someone left a tooth in a box? No lock was broken. No alarm was tripped. The security seal was intact." Zhou shook his head. "Either someone on the team is involved, or someone knows this site better than we do."

"Or both."

Zhou looked at her sharply. "What do you mean?"

Lin Xia reached into her canvas bag and pulled out a manila folder, worn at the edges and stained with what looked like old coffee. She opened it on the desk and spread out a series of photographs.

"After you called me yesterday, I spent the night going through the provincial archives. These are survey maps of this area from the 1950s, during the Great Leap Forward." She pointed to a grainy black-and-white image that showed a landscape of terraced fields and irrigation channels. "Look at this. Do you see it?"

Zhou squinted at the photograph. At first, he saw nothing but the expected patterns of mid-century agriculture. But then, gradually, his eye caught something: a regular depression in the earth, a subtle indentation that didn't match the surrounding topography. It was rectangular, oriented precisely north-south, and it sat exactly where their current excavation trench was located.

"Someone knew this site was here," he said slowly. "Decades before the construction survey flagged it."

"Someone has always known this site was here." Lin Xia pulled out another photograph, this one a close-up of a handwritten ledger. "This is from the county land registry. In 1962, a local commune applied for permission to dig a well at these coordinates. The application was denied. Reason cited: historical preservation concerns."

"Who denied it?"

Lin Xia's finger traced down the page to a signature. The ink had faded to near-illegibility, but the name was still decipherable. Wei Zhigang. County Cultural Affairs Officer.

"Find him," Zhou said.

"I already tried. He died in 1967. The official record says natural causes, but his grandson is a police captain in the Yangzhou Public Security Bureau." Lin Xia closed the folder. "His name is Wei Guo, and he's been assigned to investigate the disappearance of the night guard."

Zhou felt the headache pulse harder behind his eye. "What do you mean, disappearance?"

"The guard. Mr. Huang. The seventy-three-year-old man you stationed outside the storage tent." Lin Xia's voice was carefully neutral. "He didn't show up for his shift change this morning. His replacement found the tent unlocked and the evidence tape cut. Mr. Huang's thermos was still on the ground by the entrance. His phone was still in his pocket. But there's no sign of him."

---

Captain Wei Guo arrived at the site at ten o'clock in the morning, driving an unmarked sedan that had seen better decades. He was a solidly built man in his late forties, with a face that looked like it had been carved from the same limestone as the Tang Dynasty platform. He wore civilian clothes—dark slacks, a rumpled shirt, a jacket that had been pressed sometime in the previous century—but his posture was unmistakably that of a man who had spent his life in institutions that valued order over comfort.

He walked the perimeter of the excavation site without speaking, his hands clasped behind his back. He examined the storage tent, the cut tape, the abandoned thermos. He knelt beside the trench and studied the seven skulls for a full ten minutes, his expression unchanged.

Then he walked to Zhou's office, closed the door behind him, and said, "Tell me everything."

Zhou did. He told Wei about the discovery of the stone platform, the excavation of the seven skeletons, the lacquer box and its contents. He told him about the missing strip of silk and the tooth that had been left in its place. He told him about the carved character and the white chrysanthemum and the photograph that had been texted to him from an unknown number.

Wei listened without interrupting. When Zhou finished, the captain reached into his jacket and pulled out a small notebook, its pages yellowed with age.

"My grandfather kept this," Wei said. "He was the county cultural affairs officer in the 1960s. He spent his entire career documenting historical sites that were being destroyed by development, by agriculture, by the Cultural Revolution. Most of his records were burned when he died. This notebook is one of the few things that survived."

He opened it to a page marked with a frayed ribbon. The handwriting was cramped and precise, the characters written with a fountain pen that had left occasional blots on the paper.

"October 14, 1962," Wei read aloud. "Today I visited the depression at the northern edge of Commune Seven. The farmers call it the Field of Lost Officials. They say that anyone who digs there will be cursed by the souls of seven men who were buried without their heads facing the wrong direction. I told them this was superstition. I filed a report recommending preservation. The county committee denied my recommendation. They said there was nothing there worth saving."

He closed the notebook and looked at Zhou. "My grandfather was a careful man. He didn't believe in curses. But he also didn't believe in coincidences. And neither do I."

"The farmers knew about this site," Zhou said. "For generations, they knew."

"They knew something. Whether they knew the truth is a different question." Wei stood up. "I'm going to seal this site. No one in or out until my team has processed the storage tent and interviewed everyone who had access. That includes you, Dr. Zhou. And your archivist."

"Lin Xia had nothing to do with this."

"I'm not accusing anyone. I'm gathering information." Wei's expression softened slightly. "You should understand something. When my grandfather died, the official record said natural causes. But my family always believed differently. He had been asking too many questions about too many things. He had been writing letters to Beijing about sites that were being destroyed, artifacts that were being sold on the black market, officials who were turning a blind eye. One day he went to work and never came home. They found his body in a canal three days later."

"I'm sorry," Zhou said, and meant it.

"Don't be sorry. Just tell me everything. And don't hold anything back."

---

The second excavation day began under a sky the color of tarnished pewter. Clouds had moved in overnight, heavy with the promise of rain, and the air was thick with moisture and tension. Wei's forensic team had set up a perimeter around the storage tent, and the remaining members of Zhou's crew gathered in the shipping-container office, drinking bitter tea and speaking in hushed voices.

Liu Yang had arrived late, his eyes red-rimmed and his hands unsteady. He had been close to Mr. Huang, Zhou remembered. They had shared cigarettes during breaks, the old guard telling stories about the Yangzhou of his youth while Liu listened with the kind of attention that young people reserve for those who remember worlds that no longer exist.

"I should have stayed with him," Liu said, staring into his tea. "He asked me to. He said he felt uneasy. He said he'd been hearing things in the night, sounds coming from the trench. I told him it was just the earth settling."

"What kind of sounds?" Lin Xia asked.

Liu shrugged. "He couldn't describe them. Just... sounds. Like something moving underground."

Chen Li, who had been silent since her discovery of the lacquer box, spoke up. "There's something else. I didn't mention it before because I thought it was nothing, but now..." She paused, her fingers tightening around her cup. "When I was cleaning the eastern edge of the platform yesterday, I found a second inscription. It was smaller than the first, more weathered. I didn't say anything because I wanted to document it properly before anyone else saw it."

"And?" Zhou prompted.

"It wasn't a date marker. It was a name. Or part of a name." Chen Li pulled out her field notebook and flipped to a page covered in careful sketches. "The characters were badly degraded, but I could make out three of them. 'Luo... Bin...' The third one was too damaged to read."

Lin Xia went very still. "Luo Bin?"

"I think so. I can't be sure."

"Luo Binwang," Lin Xia said, her voice barely above a whisper. "The poet. The author of the most famous piece of rebel propaganda in Chinese history."

Zhou felt the headache pulse again. Luo Binwang had been one of the chief propagandists of the Xu Jingye rebellion, the author of the "Call to Arms Against Wu Zhao," a document so incendiary that legend said Empress Wu herself had praised its literary quality even as she ordered its author's capture. After the rebellion was crushed, Luo Binwang had vanished. Some accounts said he was executed. Others said he fled to the mountains and became a monk. Still others claimed he had never existed at all, that the poems attributed to him were the work of multiple authors.

If his name was carved into the stone platform at this site, it meant he had been here. It meant he had been connected, somehow, to the seven officials buried in the trench.

"Show me," Zhou said.

They gathered at the eastern edge of the platform, where Chen Li had scraped away layers of clay to reveal a patch of dressed stone. The inscription was faint, barely visible in the gray morning light, but it was there: three characters, their strokes worn smooth by centuries of groundwater and pressure.

Luo. Bin. And the third, too damaged to read with certainty, but its radical components were suggestive. Could be Wang. Could be something else entirely.

"This changes things," Lin Xia said. "If Luo Binwang was here, if he was involved in whatever happened to these seven men—"

"Then this site isn't just a burial ground," Zhou finished. "It's a crime scene."

---

The rain began in the late afternoon, a steady drizzle that turned the excavation site into a quagmire and forced the team to suspend work. Wei's forensic technicians packed up their equipment and retreated to their vehicles, and the police tape around the storage tent flapped wetly in the rising wind.

Zhou stood at the window of his office, watching the rain fall on the trench and the seven skulls and the stone platform with its partially revealed inscriptions. The water was pooling in the depressions, turning the yellow clay to mud, and he could see the drainage patterns shifting as the earth absorbed the moisture.

That was when he noticed it.

The water was pooling unevenly. In one corner of the trench, near where the stone platform disappeared into the eastern wall, the water was draining faster than it should have been, as if there was a void beneath the surface.

"Lin Xia," he called. "Come look at this."

She joined him at the window, and together they watched the water disappear into the earth.

"There's something down there," she said. "Something hollow."

"We need to dig."

"In this rain? The walls are already unstable. One wrong move and the whole trench could collapse."

Zhou turned away from the window and grabbed his rain jacket. "Then we'd better move fast."

They worked in the rain for two hours, Zhou and Liu and Lin Xia, carefully excavating the corner where the water had vanished. The clay was heavy and slick, and the trench walls groaned ominously with every shovelful they removed. But gradually, a shape began to emerge from the earth.

It was another stone. Smaller than the platform, rougher in its dressing, but clearly worked by human hands. And carved into its surface were more characters, these ones smaller and more numerous than the date marker.

Lin Xia knelt in the mud and read them aloud, her voice barely audible above the rain.

"'Here lie seven who kept faith. Let no one disturb their rest. Let their names be remembered, though the world has forgotten. Let the truth be known, though the powerful would bury it. We who remain will carry their silence until silence itself is broken.'"

She looked up at Zhou, rain streaming down her face. "It's a memorial. Someone buried these men and left a memorial. Not the killers. Someone else. Someone who survived."

"And Luo Binwang's name?"

"Either he was one of the seven who died, or he was one of those who buried them."

The trench wall groaned again, louder this time, and Liu shouted a warning. Zhou grabbed Lin Xia's arm and pulled her back just as a section of the eastern wall collapsed, sending a cascade of mud and stone crashing down onto the newly exposed memorial.

When the dust and rain had settled, Zhou saw something that made his blood run cold.

The collapse had opened a new cavity in the trench wall. A cavity that was too regular to be natural, its edges squared and its interior dark. A cavity that led downward at a steep angle, disappearing into the earth beneath the stone platform.

It was a tunnel. An ancient tunnel, dug by human hands more than a thousand years ago, and it was heading directly toward the spot where the seven skulls lay facing north.

From somewhere deep within the earth, carried on a current of cold, stale air, came a sound that was not the wind and not the rain and not the settling of ancient stones.

It was a human voice.

And it was calling a name.