I had a strange dream last night.
Basically, I was some sort of squid or alien or something, and I was at the bottom of the ocean, in a shipwreck of some sort. I remember going through the small wreck, doing some sort of maintenance or something. Then, A sound came from outside. Humans. They found the wreck, and quickly set up a research outpost inside the cave the Shipwreck was somehow located. Cue them attempting to break through the damaged hull of the ship. Nothing. Except, after a while, one is able to open it up a bit. I observe the human, slinking through the watery tubes of the ship. The others continue inspections, and I slowly do... something, not quite sure what, but one dies. They seem worried, and wish to leave, so I block the cave entrance off. They are trapped there, with just one rifle. It would take them a week to get the entrance unblocked. And it continues with them still investigating and stuff, until... they enter the cortex of the ship. This simply would not do, so I speed up the process of killing them off. 2 die, and the one with the rifle is about to either shoot and kill me, or I kill him. Not sure, because that's where it ends, and I wake up.
EDIT: I just realized that it sorta resembles Sphere, by Michael Crichton. And now I am also tempted to make a Fort in the Postapocalypse loosely based on it and this dream now.