This stone passage looks like it was bored out by some huge worm, as

it is roughly ten feet around and is crudely cut. Small crystals

embedded in the walls occasionally throw off brief sparks of light,

then abruptly are dark once more. The floor is heavily cracked and is

covered in rubble, so footing is a little difficult. A hole burrowed

into the floor of the tunnel here leads into inky black darkness.