To anyone who had made it this far, they would find themselves in a relatively empty hallway. At the end of the hallway, however, was a massive square panel on the floor, with several column-like objects on its corners reaching up to the ceiling. If you looked hard enough, you may notice that they could serve as a way to lift the massive panel, making it some sort of elevator. You may also notice the single poster on the wall behind it reading "KEEP OUT", followed by a prominent skull and cross bones symbol.

This is it, no turning back once you board the elevator. I'd recommend taking care of anything important before getting on, as you may not be coming back. I also recommend saving your game.