Everyone begins moving toward the rocks as the fog dissipates.
The creature, badly wounded now, begins staggering backwards as Kahan and Tahldar hit it with fire based and magic missile attacks, which both strike their mark.
It disappears, stumbling into the trees, with a howl of consternation that reverberates around you.
With the creature gone, you look about the rocks. You remember your goal is to find Tenvillah, the wise yet reclusive gnome, who lives somewhere in these parts. Geebo studied with Tenvillah, and he looks at the rocks.
"Geebo seem to remember, though it has been thousands of fogs past." You recall that they called the young gnome a child even though he was about 100 years old. If a fog is once a day, it has been a number of years.
You recall the shard of directions carved into the broken shield:
...to avoid the Keshnar;
...in the meadow of mist,
...pointing tree.
...at Gnome's Head Rock.
...in stone,
...enter down the tunnel.
Geebo inspects the rocks, squinting to see if they look like gnomes as he remembered. Then he says with a smile, "This be Gnome's Head Rock. We find tunnel up there." He points to a ledge just behind the "gnome" rock.
To your left, you hear the injured Keshnar scream again its deafening howl as the fog continues to clear. It is farther away now.
Then another sound chills you to the bone. The scream rises again, loud and angry, but this time it comes from your right. It is the answer call of another Keshnar.
Geebo stiffens. "The fiends of the mist," he says in fear, leading you up to the ledge.
Apparently, the commotion and the clearing fog has attracted yet another visitor. You see a shadow pass over you and look up to see Ozymandius circling above. The old dragon is preparing for a pass at you in which he will unleash his deadly breath.
You scramble to the ledge with Geebo and then stop. He is staring at the ground.
"The tunnel," he says, pointing at a mass of boulders and rocks. "It cave in."
As the mist is gone, you remember the flora had a bluish tint, and the warning you were given was that anything that touches the plant life when the mist is gone will be drained of water, even human flesh.
But now you are standing on a ledge on top of a massive cave in and a dragon is about to pelt you with its deadly breath. There are rocks to take cover behind, or you can jump down to the ground below, or whatever actions you think might help.
(In the picture, you are standing at the area slightly left and below center.)