You are standing in a large open cavern underground which continues to the west and to the south. There are lamps hanging on the walls, and you can barely see the floor because piles of batteries cover the ground. It doesn't look like this area of the cavern has been used in a long time. The walls and ceiling have large cracks running through the rock, and it looks like the whole room could collapse on top of you any minute. Tire tracks on the ground lead from the west and continue on through the cavern to the south. You hear a low buzzing noise which sounds like it is coming from the south end of the cavern.