Day 444

The sunken oil rig was like a time capsule dating back to the 1940's at least.
What had once been files of some sort were now sodden mulch lining the floor.
Even the crew quarters were soaked through with thick algae lining the ceiling and walls.
In its' heyday it had been the pinnacle of technology and staffed by sixty trained seamen.

The divers found it completely by accident on a night trip near a reef many miles offshore.
Its doors were wide open and a faint current gently lured them inside.
The water was far colder inside, still they were not deterred and swam further inside.
Small fish darted to and fro between them, dazed by their torchlight and sudden appearance.

As they came to the upper decks, having swam through a large bay of some sort, they saw
what appeared to have been the remains of other divers.
The three of them seemed to have gotten their hands stuck through a large glass window.
Scraping the thick layer of weed aside they saw another diver on the other side, also dead.

The three were clutching the fourth's hands and had died doing so somehow.
Whatever had gotten them it had been recent, one of the deceased had a camera round their wrist.
Deciding to take it and leave the explorers ignored their own recording camera and swam.
The current felt a lot stronger heading out and their movements grew desperate as it increased.

The oil rig creaked and groaned behind them, sounding almost like a whale.
As they reached their boat they eagerly scrambled onto its' sturdy deck to regain some warmth.
While they recuperated below deck they tried the found camera for footage.
Amazingly it still worked, the footage dating back to... five days ago.

They saw the four divers having fun around the area they were in, the reef they had been exploring.
Soon the camera panned over to the faint outline of the oil rig, seen clearer in daylight.
The four swam over to it, using sign language to ponder their find.
None of them saw a large shape moving in the distance, behind the rig.

That same shape grew closer as the four explored, one too afraid to go inside so followed from out.
They waved at each window, not seeming to spot the shape closing in, swimming towards them.
As the three progressed they saw less of the fourth, found some skeletons of the old crew though.
The explorers had been to those same rooms and had not seen any other bodies or bones.

By the time the three had reached the large window that they'd died in the fourth was already there.
Their fists were pounding against the glass frantically, their face a mask of purest terror.
The three suddenly saw the shape and it saw them as it swam jut behind the fourth.
It was some kind of whale, the explorers noted but with clawed fins and sharp ridges - prehistoric?

Before they came to a conclusion it had doubled back on the fourth sharply and bitten down.
The fourth's legs were gone in a flood of red as the creature dove downwards.
From there the footage was shaky, it seemed like the three's hands were stuck in the fourth's grip.
Still something managed to pause the footage and shut off the camera.

The explorer's stomachs churned like the rough waves beneath their boat as they turned to their own
camera, hoping they wouldn't see that same creature circling by them.
Their footage, although filmed through night vision was still too fuzzy to make out much.
They were too distracted to note that the "oil rig's" creaking was coming from right underneath them.