Precarious ledge.
At the northern extent of this chamber along one of the narrowest sections of
the ledge is a dark wooden door with an iron door knob. Surrounding it, the
tall walls run circularly parallel to the ledge. When the pillar is below the
level of the ledge, the opposing side of the chamber is visible and the
chamber appears much larger.
An eerie red light emanates from the surrounding obsidian. 
A tall oak door (closed) leads north.
Obvious exits are: se and sw.
'Shadowmere', a flaming wyrm [Rider: You]

You fall into the chasm!
You are now off your mount.

Falling through the darkness!.
The circular wall rushes by in nothing short of a blur! And the only thing
more scary than that is the speed at which the ground must be rushing upward!
The air is very cool and provides little force of resistance as it rushes by!
Darkness turns a deaf ear to short-lived screams and panic that follow the
falling mass!
An eerie red light emanates from the surrounding obsidian. 
There are no obvious exits.

This is the first time you've been here.
You stop floating and fall very quickly!
You flail wildly about as you fall!
lead shadowmere
You can only flail about as you fall!
Very loud noises echo between the walls.
You flail wildly about as you fall!
You flail wildly about as you fall!
hp: 797 (797) [] sp: 456 (456) [] ep: 269 (321) cash: 20000 [] exp: 99863
[+2928]
You flail wildly about as you fall!
You slam into the pillar!

Top of a large pillar.
With the exception of its center, the top of this sliding pillar is completely
smooth. It is very wide and enclosed by the chasm that it slides within. At
each level, the pillar is close enough to its surroundings to provide almost
intimate contact. Its smooth movement despite its massive size could only have
been achieved by very powerful magic forces.
An eerie red light emanates from the surrounding obsidian. 
There are no obvious exits.
hp: 423 (797) [-374] sp: 456 (456) [] ep: 269 (321) cash: 20000 [] exp: 99863
[]