This is a work of fiction. All characters, places and events are imaginary. Any resemblance to real people or actual events is purely coincidental. AI-generated images may be used for illustration.
At 1:17 a.m., the abandoned lighthouse transmitted an SOS.
Coastguard operator Daniel Mercer heard it through a wall of static.
MAYDAY. TWO MEN INJURED. EASTERN ROCKS. LIGHTHOUSE STATION.
Daniel stared at the radio.
Blackwater Lighthouse had been empty for twelve years.
Then the voice returned, weaker this time.
THEY ARE INSIDE. DO NOT SEND THE POLICE.
The transmission ended.
Outside, a storm was moving across the sea.
The Island
Blackwater stood on a narrow island six kilometres from the mainland. Its lighthouse had once guided cargo ships through a dangerous channel, but automation had made the station unnecessary.
Daniel contacted the harbour police.
No reply.
The storm had damaged several communication lines, and the coastguard rescue boat was already helping a fishing vessel farther north.
Then a red light appeared on Daniel’s tracking screen.
A small boat was moving towards Blackwater Island.
It carried no identification signal.
Daniel tried calling it.
No answer.
He grabbed his waterproof coat, emergency radio and flare pistol.
The harbour’s smallest patrol boat could survive the crossing if he moved quickly.
He told himself that someone might be injured.
He did not tell himself the other possibility:
Someone had sent the SOS to lure him there.
The Open Door
The journey took forty minutes.
Waves struck the boat hard enough to lift it from the water. Rain reduced visibility to a few metres.
When Daniel reached the island, he saw the unidentified boat tied beneath the old landing platform.
Someone had arrived before him.
The lighthouse door stood open.
Inside, muddy footprints crossed the floor and disappeared up the spiral staircase.
“Coastguard!” Daniel shouted.
No answer.
The lighthouse smelled of wet stone, rust and something chemical.
He found a broken radio beside the stairs. Its microphone was still warm.
A dark stain marked the wall.
Blood.
Daniel followed the footprints upwards.
Halfway to the lantern room, he heard movement below.
The entrance door slammed shut.
Someone had locked him inside.
The Man in the Lantern Room
At the top of the tower, Daniel found a man lying behind the old lens mechanism.
He was alive, but blood covered one side of his face.
“Can you hear me?”
The man opened his eyes.
“My name is Peter Voss,” he whispered. “Maritime investigator.”
“What happened?”
Voss pointed towards a steel case chained to his wrist.
“Evidence.”
Daniel recognised the name. Voss had been investigating a series of cargo thefts along the coast. Containers had vanished from ships before reaching port, yet no forced entry or piracy had been reported.
“What is in the case?”
“Shipping records. Payments. Names.”
A noise echoed from the staircase.
Metal scraping against stone.
Voss gripped Daniel’s sleeve.
“They knew I was bringing it ashore. My boat was forced onto the rocks. I reached the lighthouse and called for help.”
“Who locked us in?”
Voss looked towards the stairs.
“One of them followed me.”
The Voice Below
A man spoke from the darkness beneath them.
“Daniel Mercer.”
Daniel froze.
The voice knew his name.
“You should have stayed at the station.”
A figure appeared several steps below, carrying a pistol.
Daniel recognised him.
Harbour police officer Lewis Grant.
Grant had worked with the coastguard for years. He had attended rescue exercises, drunk coffee in Daniel’s control room and complained about the harbour’s terrible vending machine.
Now he pointed a gun at them.
“Give me the case,” Grant said.
Voss struggled to stand.
“You arranged the thefts.”
“I arranged nothing. I only made sure certain patrols were elsewhere.”
Daniel understood.
Grant had known the rescue boat was operating in the north. He had also known Daniel would hear the emergency call alone.
“You blocked the police radio,” Daniel said.
Grant smiled.
“I am the police.”
Lightning flashed through the lantern-room windows.
For one second, the entire tower turned white.
Then all the lights went out.
Thirty Seconds of Darkness
Daniel moved first.
He kicked the emergency toolbox down the stairs.
Grant fired.
The shot struck the old lens, shattering glass across the floor.
Daniel dragged Voss behind the metal machinery.
Grant climbed higher.
“You cannot leave,” he called. “The boat is disabled.”
Daniel checked his radio.
Only static.
The storm blocked the signal inside the tower.
But above them was the maintenance hatch leading to the outside gallery.
Daniel looked at the lighthouse lens.
Although the main lamp had been removed years ago, a small emergency battery remained connected to the rotating mechanism.
“If we restart the light,” he whispered, “the mainland may see it.”
Voss shook his head.
“The lighthouse has no official signal.”
“Exactly.”
Daniel crawled towards the control box.
Grant fired again.
The bullet struck the railing beside Daniel’s hand.
He reached the switch.
Nothing happened.
The battery indicator was dead.
Grant climbed the final steps.
Then Daniel remembered the flare pistol.
He aimed not at Grant, but at the old reflector above the lens.
The flare exploded inside the lantern room.
Red light filled the tower.
Grant shouted and covered his eyes.
Daniel threw himself forward.
They struck the railing together.
The pistol fell through the centre of the staircase, spinning into darkness.
Grant punched Daniel in the throat and ran for the gallery door.
Voss stretched out one leg.
Grant tripped.
His body struck the floor, and Daniel managed to pin him down.
But the lighthouse had begun to burn.
The False Signal
Smoke spread through the lantern room.
Daniel tied Grant’s hands with a safety rope and helped Voss towards the gallery.
Outside, the storm nearly tore them from the platform.
Far across the water, the coast remained dark.
No rescue lights.
No boats.
Then the lighthouse beam moved.
The flare had ignited oil and dust inside the old mechanism. Heat had restored a damaged connection, and the emergency motor began turning.
A red beam swept across the sea.
Once.
Twice.
Three times.
Then darkness.
Daniel knew the pattern had no nautical meaning.
But anyone watching would know that an abandoned lighthouse should not be flashing red.
Below them, an engine started.
Grant’s partner was escaping in the unidentified boat.
Voss pointed towards the eastern rocks.
“My boat.”
It was damaged, but still floating beyond the surf.
Daniel climbed down the exterior ladder, released the emergency life raft and lowered Voss and Grant into it.
The lighthouse windows burst behind them.
Burning glass fell into the sea.
The Boat in the Storm
The unidentified boat was already fifty metres away.
Daniel found a small outboard motor attached to the raft, but it refused to start.
Grant laughed through bleeding lips.
“You are too late.”
Then a searchlight appeared beyond the rain.
The coastguard rescue vessel had seen the red flashes while returning from the northern emergency.
Its searchlight swept across the water and found the fleeing boat.
A loudspeaker ordered it to stop.
Instead, the boat accelerated towards the channel.
The driver had forgotten why Blackwater Lighthouse had been built.
Hidden rocks lay beneath the surface.
The boat struck one at full speed.
Its bow lifted, twisted and disappeared into the waves.
The rescue crew pulled the driver from the water minutes later.
What Was in the Case
Peter Voss survived.
The steel case contained shipping documents, bank records and messages connecting several port employees, transport companies and officials to the theft network.
Grant’s name appeared throughout the files.
So did the name of the man recovered from the wrecked boat.
The criminal group had stolen selected containers by altering digital records before ships entered port. The cargo was unloaded legally—on paper—then transported to private warehouses.
The missing goods were worth millions.
Daniel later asked Voss why the emergency message had said:
THEY ARE INSIDE. DO NOT SEND THE POLICE.
Voss looked at him.
“I never said that.”
Daniel felt a cold pressure in his chest.
“Then who did?”
The investigators examined the damaged lighthouse radio.
The first part of the SOS had been transmitted by Voss.
The final warning came thirty seconds later—from the coastguard frequency.
From Daniel’s own station.
Someone else had been there after he left.
The Second Voice
Security cameras showed no visitor entering the station.
Nothing had been stolen.
But Daniel’s chair had been moved.
On the desk lay a handwritten message:
GRANT WAS NOT THE ONLY ONE.
Beneath it was a list of three ships scheduled to enter the harbour during the following week.
Each carried valuable cargo.
The handwriting was never identified.
Neither was the second voice on the recording.
The remaining members of the smuggling network vanished before police could arrest them.
Years later, Daniel still worked nights at the coastguard station.
Blackwater Lighthouse was rebuilt and automated.
It never transmitted another emergency call.
But during severe storms, static sometimes filled Daniel’s radio.
And beneath it, barely loud enough to hear, a voice would whisper:
They are inside.

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