You finally land on something soft and bouncy that breaks your fall rather than your neck. As soon as you get your breath back you try and work out where you are and what you've landed on.
Suddenly the chamber is illuminated by a plume of fire and you see that you are in a large stone chamber. You also find out what you landed on - and where the fire came from!
You are sitting on the belly of a large dragon, and a very fat one at that. The belly that broke your fall is round and bouncy, and looking at the dragon's face you see he has multible chins, pudgy cheeks and glowing eyes that stare right at you.