The group makes its way in Oreioth's wake, first peering carefully around the corner, then advancing slowly. This part of the cavern is dark, yet light from the large cavern behind calls out the dark walls of the cave in enough detail to move forward. Scattered rocks here and there are the only objects around. A steady light in the distance illuminates the way forward, and grows brighter as the group ventures forward.
As they make their way past a final natural column of stone, the source of the distant light at last becomes visible.
An oval cavern opens several feet away, forty feet wide and sixty feet long. Dark purple tapestries hang on the walls. At the center of the room stands a pedestal fashioned of severed arms arranged to clutch one another in a cone.
Cradled in the uppermost hands is a glowing crystal sphere. A dark sigil with an eyelike slit floats above the sphere.
Cue dramatic music...
Map updated. I put you in what I thought might be logical starting positions, but feel free to rearrange yourselves as you post. It's always helpful to post exact coordinates ;).
The sigil above the glowing sphere looks like this: Floating Sigil