T.D.o.N.B: Maw dragons

I crossed that entrance and through a short corridor found myself in a very well-illuminated chamber. All that light was coming from a waterfall of lava, pouring down from quite a high place into a pool below. It was large, taking around half of a round chamber with maybe a hundred meters in diameter. That would be around three hundred feet, so it was a substantial space.

It was very hot inside too, and the air smelled of sulfur, which was very unpleasant for my nostrils.

As I looked around, to find the boss, I didn't notice any throne or something of such kind, so it became obvious that my opponent was hiding in leva. I decided to approach the pool to find out if my assumption was correct.