Nobody who fishes the North Sea alone will ever admit they are frightened.

They’ll tell you about rogue waves, shifting sands and engines that choose the worst possible time to fail. They’ll tell you how weather forecasts lie and that seals have eyes that are too human. What they won’t tell you is that sometimes, on a calm night, something else might come to the surface…

At midnight, when the coastline had become little more than a thin ribbon of amber lights behind him, Joe Lyche killed the engine and let the boat drift. The sea was as flat as old slate. No wind or swell. Even the gulls had long since abandoned the darkness for warmer climes inland. It was perfect fishing weather.

He baited two lines and settled into the familiar silence that only solitary fishermen ever truly understand.

It wasn’t loneliness. it was relief.

No mobile signal, no mortgage, no ex-wife, No television telling him the world was about to end every two minutes…

Just stars. Thousands of them. He poured coffee from a flask and watched the constellations shimmer on the black water. A couple of times, he thought he saw a shooting star, but he could never seem to switch his focus between the mirror surface of the water to the sky fast enough to be sure.

As the night began to cool, Joe got up and stretched. He made his way over to his lines and began to check them. As he leaned on the gunwale, a single point of pale blue light glided beneath the surface of the sea about fifty yards from the boat,

Joe frowned. It seemed too bright for phosphorescence, too steady for a fish. Then the light stopped. Another appeared beside it. then another until there was a neat line of glowing blue orbs, travelling beneath the water as though they were following some invisible road.

Joe reached for the spotlight, shining the beam directly at the lights. There was nothing there. Just the lights shining back at him steadily.

Suddenly, his rod bent violently, the reel screaming. Instinct took over as Joe grabbed at the rod. Whatever was on the end of the line wasn’t swimming. It was descending. No frantic runs or shaking just impossible weight pulling straight down. The braided line slicing through the water until the reel began to smoke. Until…

It stopped. Dead still. Joe tightened the drag. Nothing. He pulled. Still nothing. It felt less like a fish than a hook caught on the moon. The sea around suddenly became perfectly still. Too still. The gentle slap of the water against the hull ceased entirely. The boat no longer rocked. Even Joe’s breath sounded unnaturally loud. Then came the sound. Three slow knocks from beneath the boat.

Thunk…

Thunk…

Thunk…

Joe froze. Something had struck the hull. Something that was large enough to make the whole boat shiver. He leaned over the gunwale with his torch, aiming the beam at the black water. Nothing.

The knocks came again. Closer this time, as though whatever made them was directly beneath him. Then the fish-finder erupted into a cacophony of beeps, clicks and squeals.

The screen, usually empty except for the seabed thirty meters below, filled with colour – not arches or fish, one solid mass. bigger than anything that the machine should have been capable of displaying. The depth numbers flickered. Thirty meters… Sixty… One hundred… Eight Hundred… No reading.

The bottom had vanished. Joe stared. The North Sea wasn’t eight hundred meters deep, it couldn’t be. But the display stared back at him.

“BELOW RANGE”

The blue lights returned surrounding the boat. Joe counted twelve of them, perfectly spaced, perfectly circular, They began to rise, slowly. Slowly enough that his mind had time to insist he wasn’t seeing them. The water bulged. Not splashed. It bulged as though something unimaginably vast had displaced the sea from beneath. The boat lifted on an invisible swell – but the stillness, the silence remained. A shape emerged from the water. Not a creature or submarine. Not anything with an outline Joe’s eyes could understand. The stars above it seemed to bend as though the thing carried it’s own gravity.

Joe tried to speak but he couldn’t remember how.

The shape hung silently above the water for perhaps three seconds. Or perhaps three hours. Time had stopped making sense. Joe realised with sudden horror that he wasn’t just looking at it.

It was looking at him.

And in that moment – that second – every childhood memory. Every basic instinct within him, screamed that that eye contact meant… something. An invitation. A challenge.

Recognition.

Then, without creating so much as a ripple, it descended and the sea closed over it like black glass.

Sound returned as his reel suddenly spun free, the impossible weight gone. The line came back neatly cut – not frayed or bitten – cut. The engine started on the first try.

Tom did not look behind him.

The harbourmaster found him asleep in the wheelhouse just after dawn. Joe insisted he had had a ‘strange night’, nothing more.

People laughed when he eventually described the real events of that night. The story became another pub tale. Too much coffee, they said. Not enough sleep. A seal. An old wartime wreck. And Joe agreed. Eventually.

Joe sold the boat that Autumn. He never fished again.

Months later, while clearing it out, the new owner found something trapped beneath the deck grating. Not seaweed, or rope or part of the tackle.

It looked like a strand of transparent glass, no thicker than a fishing line. It was unusually cold to the touch and seemed to glow faintly in moonlight.

The new owner sent the strand to be analysed at some posh university somewhere. The report said simply:

“MATERIAL COMPOSITION UNKNOWN”

The sample mysteriously disappeared before anyone could repeat the tests. And, because the original tests had been carried out as a ‘favour’, officially it never existed.

Yet, on certain cloudless nights, fishermen working that stretch of sea still report seeing a line of pale blue lights moving silently beneath their boats. Always twelve, always travelling East.

Towards water that charts insist isn’t deep enough to hide anything at all.