The darkness did not arrive like a curtain. It arrived like a collapse—all at once, with no warning, as if the world had simply decided to stop offering light. For three full seconds, no one moved. Lu Chengen felt the whisper still vibrating in his ear, a residue of warmth that could not have been imagined. Someone had been there. Someone had left.
Then Jiang Feng's lighter sparked, a tiny orange bloom that made everyone flinch. He cupped it with trembling hands and relit the candle, which had been pinched out—not blown, not extinguished by a draft, but deliberately pressed between thumb and forefinger. The wick was still warm. The wax was still soft.
"Who did that?" Duan's voice boomed through the hall, echoing off the concrete walls. He had the wrench in his hand now, a heavy iron thing meant for loosening flange bolts. "I'll break the fingers of whoever—"
"Put that down," Tan Weiming said, with the quiet authority of a man who had spent thirty years issuing orders that were not questioned. "Violence will not open that door. It will only make the rest of us more afraid."
Duan hesitated, then lowered the wrench, but did not let go. His knuckles were white.
Xiao Lan had moved to the tunnel entrance, crouching low, peering at the floating raincoat. She reached out with her crowbar and hooked the collar, pulling it toward her. The coat was heavy with seawater, and as it slid onto the concrete floor, something fell out of its pocket—a small, waterlogged notebook, bound in black leather, the kind used by ship's engineers for engine-room logs.
She flipped it open. The ink had run badly, but some characters were still legible. She squinted, holding it close to the candle flame. "There's a name inside. 'Ma Zhigang.' And some dates from November 1982. This is—this was the foreman's coat."
Mrs. Cheng stepped forward, her face hardened. "Ma Zhigang retired. He lives in the southern district. I checked. I went to his apartment building last month. The neighbours said he moved away—no forwarding address."
"Maybe he moved into a coat," Duan muttered, then caught himself. The joke died in his throat.
Lu Chengen examined the coat more closely. The zipper was broken, yes, but the brass button was unusual—it had an anchor embossed on it, the kind used on official Port Authority uniforms. That was not a foreman's button. That was an inspector's button. He looked at Tan Weiming, whose own raincoat had identical buttons—all present and accounted for.
But the coat was not Tan Weiming's. The size was too small, the shoulders too narrow.
"Someone brought this here as a message," Lu Chengen said. "Ma Zhigang is the name we just spoke. The coat appears right after we said his name. This is not coincidence. This is—"
"Rehearsed," Qiu Wei finished, his voice thin. He had retreated to the control desk, hugging his briefcase like a shield. "Someone knew exactly what we would discuss. Someone timed the entrance."
"Or someone is Ma Zhigang," Jiang Feng said, his journalistic instincts overriding his fear. He looked around the group, studying each face with a new, sharper lens. "The foreman could be among us. He could have faked his retirement. Changed his appearance."
Duan snorted. "I worked with Ma for two years. He was a fat, balding man with a mole on his left cheek. None of you match that. Not even close."
"People change," Xiao Lan said quietly. "Plastic surgery. Weight loss. Beards. The 1980s have seen stranger things."
Tan Weiming shook his head. "The foreman's file—I've seen his photo. Duan is right. None of these faces match. The coat is a prop. A plant. Meant to unsettle us."
"It succeeded," Mrs. Cheng said. She knelt beside the notebook, trying to read the blurred entries. "This page has a time log. 14:22, November 22, 1982—'Cable check completed. No anomalies.' Then 14:45—'Diver descending. Commencing weld inspection.' Then 15:03—'Tension spike. Hose snagged. Diver unresponsive.' And then—" She squinted harder. "The last entry is smudged, but it looks like 'signal lost. Commenced recovery.' That's it. That's the whole log."
"Where did you get that notebook?" Lu Chengen asked Xiao Lan.
"From the coat pocket. I didn't put it there."
"Who brought the coat into the tunnel?"
Silence. Each person looked at the others, searching for a tell, a twitch, a bead of sweat that did not belong.
Jiang Feng broke the silence. "Let's do a roll call. Everyone state their exact time of arrival and the entrance they used." He opened his notebook and poised his pen.
Duan went first. "15:30, main gate. I walked in through the broken fence. No one else around."
Qiu Wei: "15:45, side door on the west wall. It was unlocked. I came straight to the control room."
Tan Weiming: "16:10, main gate as well. I saw Duan's footprints in the mud, but I didn't see him."
Xiao Lan: "16:20, via the cable tunnel from the jetty. The tunnel was dry then. I walked all the way without meeting anyone."
Mrs. Cheng: "16:25, main gate. I passed an empty jeep—Lu Chengen's—and walked in."
Lu Chengen: "16:00, main gate. I was the first."
Jiang Feng: "16:15, main gate. I saw Tan Weiming ahead of me, about fifty metres, but he didn't turn around."
Tan Weiming nodded. "I saw footprints behind me, but I assumed it was Duan. I didn't look back."
"So no one saw the coat being carried in," Jiang Feng concluded. "Which means either it was already in the tunnel before any of us arrived, or someone hid it and retrieved it during the confusion."
"Or the coat walked in by itself," Duan said, and this time, no one laughed.
The water had risen to cover the floor grates completely. It was now a shallow sheet, maybe two centimetres deep, spreading across the entire hall. It was cold, brackish, and carried the faint metallic tang of rust and diesel residue. Lu Chengen felt it seep into his boots and did not care. His mind was elsewhere—on the whisper, on the pinch of the candle, on the impossible timing of the coat's appearance.
He walked to the chalk mark on the wall and traced the word "Aggrieved" with his fingertip. The chalk was dry, recent. It had not been there when he first entered. He was certain. He had scanned every wall out of habit—old electricians always check for water stains, cracks, and foreign markings. This mark was fresh.
That meant someone had drawn it after the door slammed shut. In the first ten minutes of their imprisonment. In full view of everyone—or at least, in the shadows that everyone had assumed were empty.
He turned to face the group. "We need to search the entire substation. Room by room. The gallery, the relay room, the transformer pit, the cable tunnel—all of it. We need to know if there's anyone else here. Or if any of the exits are still usable."
Tan Weiming agreed. "I'll take the west corridor. Duan, you take the east. Lu, you and Xiao Lan check the transformer pit. Jiang Feng, stay with Qiu Wei and Mrs. Cheng—guard the control room. If anyone finds anything, shout."
The search party dispersed. Lu Chengen and Xiao Lan descended a metal staircase into the transformer pit, a cavernous space twenty metres below ground level. The pit had been dry for years, but now there was a foot of water at the bottom, illuminated only by the faint glow of the emergency lamps above. Massive transformer housings loomed like sleeping giants, their copper windings stripped years ago by scrappers.
Xiao Lan waded ahead, her crowbar held like a spear. She moved with the practiced economy of someone who had spent years in confined spaces—a dry-dock mechanic, she had said. But Lu Chengen noticed something else: her splinted wrist. The splint was fresh, white gauze with a faint red stain near the thumb. A recent injury.
"How did you hurt your wrist?" he asked.
She did not turn. "Fell off a ladder. Last week."
"At the dry dock?"
"Where else?" Her tone was flat, dismissive. But there was a tightness in her shoulders that contradicted her casual answer.
They reached the far end of the pit, where a massive cable duct emerged from the concrete wall. It was here that the original submarine cable had entered the substation, before being cut and abandoned. The duct was now open, its steel cover pried off and tossed aside. Lu Chengen shone his torch inside. The duct led to the seaward side, sloping downward, and it was filled with dark, motionless water.
"There's a current," he said, holding his hand near the surface. "Not strong, but it's flowing inward. The tide is pushing water up the duct. If the storm surge gets high enough, this whole pit will fill."
Xiao Lan knelt and dipped her fingers in the water. "It's salt. Pure sea. This duct connects directly to the harbour bed. If the surge peaks—" She looked up, her face pale under the torchlight. "We'll be underwater in six hours."
Six hours. Lu Chengen did the mental calculation. The typhoon was forecast to pass by dawn. If the water kept rising at this rate, they had until midnight before the pit became a pool, and a few hours more before the main hall flooded. The door was sealed. The windows were barred. The cable tunnel would be the first to go.
"Then we need to find a way out before then," he said. "The duct itself—does it lead to a manhole or an outfall?"
"It leads to the sea," she said. "That's it. No hatch. No grate. Just a straight pipe to the open water, about twenty metres out. I came through the tunnel, not this duct."
He nodded, filing that information. They began to head back, but as they passed the second transformer housing, Xiao Lan stopped abruptly. She pointed to a dark shape wedged between the housing and the wall—a waterproof bag, military-grade, with a shoulder strap and a torn handle.
"That wasn't there before," she whispered.
Lu Chengen approached cautiously. The bag was heavy. He unzipped it and found, inside, a set of diving weights, a coiled rope, a waterproof torch, and a handwritten note on plain white paper. The note read, in tidy characters: "The third step is always the hardest. Ask Qiu Wei about the insurance signature."
He read it twice. The ink was black, fresh, and the paper was dry—which meant it had been placed here after the flooding started, because anything left earlier would have been soaked. Someone had been in this pit, in the dark, in the water, within the last half hour. And that someone had known exactly where to leave the note.
"Qiu Wei," Xiao Lan said, her voice barely audible. "The legal assistant. What does he know about insurance?"
"We'll ask him. Right now."
They climbed back up to the control room, where the others had reassembled. The mood was grimmer than before—Duan had found a collapsed section of the east corridor, blocking access to the emergency exit. Tan Weiming had found nothing but old papers and rat droppings. The search had yielded no other human, no hidden passage, no miracle.
Lu Chengen held up the note. "Found this in the transformer pit. It mentions Qiu Wei."
All eyes turned to the legal assistant, who shrank behind his briefcase. "I—I don't know anything about a note. I've never been to the pit. I swear."
"Then why does it say to ask you about the insurance signature?" Jiang Feng pressed, stepping closer.
Qiu Wei's face crumpled. "The 1983 arbitration. The insurance claim. I was the junior clerk who processed the final settlement documents. The widow—Su Ping—signed a release form. But the form had a clause that waived the right to pursue criminal negligence. It was standard procedure. The shipping company insisted."
"But you knew the clause was there," Tan Weiming said. "You knew it would prevent any further investigation."
"I was following orders! My supervisor told me to include it. I was twenty-four years old. I didn't have the authority to change anything."
Mrs. Cheng's voice cut through like a blade. "You buried my husband's death under a signature. You made it an insurance matter instead of a crime. Do you understand what you did?"
Qiu Wei was crying now, his glasses fogged with tears. "I've lived with it for three years. I've lost sleep. I've lost weight. I came here tonight because I wanted to find the original file and destroy it—so no one else could use it to blame me. I'm not the killer. I'm just a coward."
"A coward who wrote the clause that protected the foreman," Duan said. "The foreman who got his bonus. The foreman who disappeared. And now his coat shows up." He stepped toward Qiu Wei, the wrench still in his hand. "Maybe you didn't kill anyone. But you sure as hell helped the killer walk free."
Lu Chengen stepped between them. "Enough. We are not judges here. We are trapped. If we turn on each other, we'll drown before the water even reaches our necks."
Duan backed off, but his glare did not soften.
Jiang Feng had been scribbling furiously in his notebook. "The note says 'the third step is always the hardest.' That's a reference to a staircase—or a process. The cable repair had three stages: inspection, welding, and recovery. The diver died during the recovery. The third step. The hardest." He looked up. "Someone is trying to tell us that the recovery phase was the sabotage point. Not the hose kinking, not the anchor chain—the recovery itself."
Tan Weiming stiffened. "The recovery was handled by the surface crew. The winch operator, the crane man, the diver's tender. There were three men on that team."
"Three names," Xiao Lan said slowly. "Ma Zhigang. The foreman. Who were the other two?"
Mrs. Cheng recited from memory: "The winch operator was a man named Luo Peng. The tender was a young apprentice named Sun Yi. Both were fired after the accident. Luo Peng moved to the southern province. Sun Yi—" She stopped. "Sun Yi was never found. He left his apartment one day and never came back. The police filed it as missing."
"And where is Sun Yi now?" Jiang Feng asked, the reporter's hunger back in his eyes.
No one answered. But the water at their feet had risen another centimetre, and the candle flame was beginning to waver in a draft that came from nowhere—a draft that suggested an opening, a crack, a space that was not fully sealed. A space where someone might be hiding.
Lu Chengen looked at the chalk mark again. "Aggrieved." That word did not belong to the diver's widow. It belonged to the perpetrator—the one who felt wronged. The foreman? The winch operator? The missing apprentice? Or someone else entirely?
He thought about the whisper in his ear. "Welcome to the wake." A wake was for the dead. But wakes were also for the living—the ones left behind, the ones who carried the unresolved grief. And sometimes, in the dark corners of such gatherings, the dead themselves returned, not as ghosts, but as accusations.
Xiao Lan had moved to the tunnel entrance once more. She crouched and examined the floating debris. Among the scattered planks and broken bottles, she spotted something new—a child's toy boat, made of folded newspaper, floating serenely on the surface. She picked it up. It was dry on the inside, which meant it had been launched recently, from somewhere upstream in the tunnel.
Inside the boat was a single slip of paper, with a typewritten message: "Ask Tan Weiming about the missing page in the inquiry report."
She read it aloud, and the room went quiet.
Tan Weiming's face turned the colour of old concrete. He opened his satchel and began rifling through its contents, his hands shaking. "There is no missing page. The report was complete. I filed it personally."
"Then why does the note say that?" Jiang Feng asked.
Tan Weiming did not answer. He pulled out the manila folder and spread the pages across the control desk. Everyone crowded around. The report was indeed fourteen pages long, each one stamped and initialled. But as Lu Chengen counted, he noticed a staple mark on page seven—two small holes where a staple had been removed. And the page numbers jumped from six to eight.
"There's a page missing," he said quietly. "Someone tore it out. The staple marks are fresh. This wasn't done years ago. This was done recently—within the last few days."
Tan Weiming's voice was a whisper. "I don't remember tearing any page. I've had this folder in my satchel for three years. I've never opened it in public. I never—" He stopped, his eyes wide. "Unless someone took it from my satchel. Without my knowledge."
"When?" Duan demanded. "We've been together the whole time."
"Before we came," Tan Weiming said, his voice hollow. "Someone could have broken into my office. Taken the folder, removed the page, replaced it. I wouldn't have noticed."
Or, Lu Chengen thought, someone in this room had done it during the chaos of the search. Tan Weiming had left his satchel unattended for nearly thirty minutes while he explored the west corridor. Any one of them could have stolen the page.
The water was rising faster now. It lapped at the lowest step of the control desk. The emergency lamps began to flicker in earnest, their batteries nearing exhaustion. The candle was the only stable light left.
Jiang Feng pointed to the tunnel. "If there's a current coming in, there's an opening. The outfall pipe. It might not be grated. If we can get to it, we might be able to swim out—"
"In this surge?" Duan laughed bitterly. "You'd be dashed against the rocks within thirty seconds. And the pipe is probably filled with debris."
"Then we dig," Xiao Lan said. "There's old tools in the storage locker. Shovels, pickaxes. We can try to break through the east wall—it's only cinderblock."
The group began to move, galvanised by a desperate purpose. But Lu Chengen remained still, watching the floating newspaper boat bob gently in the murky water. He picked it up and turned it over. On the underside, written in pencil so faint it was almost invisible, were two characters: "Ce Suo." Washroom. The same washroom where, earlier, he had noticed the door was slightly ajar—even though no one had used it.
He walked to the washroom door, pushed it open, and looked inside. The small cubicle was empty. But on the cracked mirror, written in soap scum, was a message that made his blood turn to ice:
"Third step: find the rope. It is not for lifting. It is for tying."
He read it three times. Then he turned back to the group, who were now arguing about the best wall to breach. He did not speak. Because he suddenly understood that the killer was not among them in the sense of standing next to them. The killer was the structure itself—the building, the tunnel, the water, the carefully planted messages. The killer had woven a web that did not require a physical presence. The killer had already set the trap, and they had all walked into it willingly.
And somewhere, in the dark waters of the cable duct, a rope was waiting to be found.
He looked at the toy boat again. The newspaper it was folded from was dated three days ago—the day the demolition notice was published. The day someone had begun to plan this gathering.
He did not join the others at the wall. Instead, he walked back to the transformer pit, alone, with a flashlight and a heavy heart. Because he knew the rope was down there. And he knew, with a certainty that felt like a short circuit, that whoever had left it intended for it to be used—not to save anyone, but to bind them all to a reckoning that would not end until the last name was crossed off.
In the pit, the water had risen to his knees. He waded toward the cable duct, and there, floating at the entrance, coiled and gleaming under the torchlight, was a length of nylon rope—new, bright white, tied in a perfect figure-eight loop at one end.
He did not touch it. He just stared at it, feeling the cold water climb higher, feeling the weight of every choice he had ever made press down on his shoulders.
The third step was always the hardest. And he had just taken it.
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