Alright, this is one for the books. This arises from a fight against stone giants at the Storval Steps in Rise of the Runelords vol 4.
Druid, transformed into a large air elemental through her wildshape ability, is fighitng a stone giant while hovering about 40' off the ground (the giant is standing on a ledge). The giant gets in two lucky shots, and drops the druid to -2 hp. 40' below, a dwarf ally happens to be standing adjacent to where the druid would "fall".
I roll hypothetical falling damage, and it's going to kill her unless something happens. So.
1) Does a druid revert back to their natural form when knocked unconscious (from negative hitpoints, and not some other effect)?
2) Assuming she remains in air elemental form, does she fall? If so, does she fall in a way that delivers falling damage?
3) If she falls, can the dwarf attempt a grapple as she moves through his threatened area, thereby catching her (I think so). But does she still take any falling damage?
a) If she does take damage, is it full or mitigated?
b) Does the dwarf take damage?
c) Any additional complications from the air elemental being large and the dwarf being medium?
How's that for a D&D physics question? I appreciate the PATHFINDER braintrust's help on this one.