Ivory key guarded by a slime in the south-southeast area, past a door at the end of the hallway. Farli the dwarf is in the cells to the south-southeast. He is in the cell directly to the west of the slime with the ivory key.
Welcome to level 2. Go north, then east. Meet Wahooka. DO NOT ATTACK HIM! Talk to him. He wants something valuable. Go through the door, continue east. Go south. You'll probably meet your first slime now. JOY! (Slimes, by the way, are more vulnerable to cuts than crushes, so use a sword or axe. Or fire. Slimes are afraid of fire). At the corridor, turn east and go through the first door on your right. Waste the slime & pick up the gem it leaves behind. Go back to Wahooka's spot and give him the gem. Now go back to the corridor. Go east to the wall. Turn south. Walk through the south wall-it's an illusion. Kill the Sharga, then go south to the wall (which is really another illusion, but ignore it for now). Turn left and walk to the wall. Turn south. Take your first passage left. Go to the end of the corridor. Turn left and go north to the wall. Turn left and go through the door. Kill the slime, then check its corpse for the ivory key (useful stuff!) Go back east to the wall. Turn south and take your next door on your right.
Information taken from this walkthrough [url=]http://www.thecomputershow.com/computershow/walkthroughs/stonekeepwalk.htm[/url] Hopefully that will help you get the ivory key.