You are about to enter a realm of horrific monsters, vengful gods, sadistic sorcerers & malevelant lords/ladies! Sounds pretty terrible, but fear not for there is good in this world too, as well as fame and fortune for those brave enough to venture forth into the darkness!
You find yourself in a cylindrical cobblestone chamber. The only light is flittering in from a grate 20' feet above. Obvious exists are to the west, north and east.