Oh, somebody is down there after all. Someone with a very tricky kind of magic for a horse who is aloft, it seems.
One moment he's happily flying around, another he suddenly is force-shifted back to a horse.
He falls like an idiot, forlegs splayed and making weird dance-like motions, trying to mimic the motion of wings still where they absolutely can't keep him aloft. Then, panic overtakes him for a heartbeat or two and more of him tries to writhe and struggles against the reality.
It only takes about three seconds for him to crash-land in the water below. The impact takes the breath from his lungs and sprains an ankle, but thankfully the water itself is a source of healing, and the pain quickly subsides. (He doesn't dare to think about what would have happened if he had landed beside the waterfall's stream.)
Sneezing and snorting, his white head emerges from the water with the shock and confusion still on his face. While his eyes find a shape nearby, his focus is still blurry, and a frown creases into his forehead. "Hey! What'd you do that for?"
from the ashes a fire shall be woken