Rooms

  These stairs tremble and shake with your every move.  Some of the steps

are missing and some of them look so weak you don't dare step on them. 

Rickety is definitely a word that could describe these stairs.  They spiral

slowly upwards.  You cannot see what might lie around the next curve and

your light is only good for a few feet.  Cobwebs have attempted to conceal

these steps from all living creatures' eyes.  Rats don't even venture here.