You reach the end of the hallway and open the door. In the next room are three more doors. One to your left, one to your right, and one across from you. You step inside and the floor begins to shift underneath you. Without warning, the floor starts spinning around and you get knocked off your feet. Your head hits the wall and you drop face down on the floor. After a couple of minutes, the floor stops moving and you find a way to stand up. Holding your head, you look around and realize you have no idea where you came from. All you see now is four doors. Which one will it be?