Pump City Problems

Travel under the sea to magical oil pump and refinery where the idiots who inaugurated the facility by turning on the pump didn't check to see where the drill was drilling into.

Thrilling thrills include:

1. Words written in blood on the walls!

2. Harpoons!

3. An interdimensional being that could maybe shrug off harpoons!

4. A Video.

And that's pretty much it. It has been designed for Nox Aeterna, but you can play it with your friends in any d100 scifi ttrpg with little modification.