Hall of Infinite Doors

"So you disarmed Sokolov?" says a voice colder than the water below you. "Why didnt you kill him? No matter, I did that for you. Call it a favor. Dont bother trying to stop me from coming through that door, its inevitable." The radio clicks off and there is a presence behind the door. You notice a hatch on the floor of the room you are in.

You have 1 choice: