Stuck in the Palawan Temple
OK, I am in the room with the huge gong. I got the jewell from behind there. I took the elevator up/outside and killed all the guys and climbed up the wall and went into the chamber and got the jewell. Now I am back in the damned room with the gong and the lava-fall and have no idea what to do. There are a few doors that I can't open and I have an aluminum key that stumps me (by the detail here, you can see I've been here for a while).