The jewel slides towards the left, revealing a stone staircase into the shadows. You cautiously walk down, going slowly to make sure you don't fall. What could be down there...?

You step onto the final stair and find a deep crystal blue room. Each way you turn, there are doors, one right after another. Not only on the walls too, there are large, square columns all throughout the room, looking like they are holding up the ceiling. There is a door on each side of every square column. You look back, and realize a wall has closed behind you, leaving you with no way to go back...

Well, which door is it going to be?