The bear wandered around in the bushes, attracted by the scent of a fresh kill. The carcass dripped with slowly clotting blood, and the bear could smell the entrails buried nearby, and ate what was there, before picking up the scent of more meat, and followed the smell toward what was likely a campsite of some sort.
The bear marched through the woods, softly but bear-like, making itself known but not overtly. The bear stopped and sniffed the air and the ground, catching the scent of some humans, and it became wary, but hunger drove it onward. The bear heard the sounds of someone approaching, but would not stand down from a fight with a human, and so it continued forward, toward the smell of the cooked meat.
From the woods, a woman and a one-armed man suddenly emerged in front of the bear, some 10-15 feet away, surprising both parties. The woman pulled a bladed weapon, and the one-armed man tensed up, so the bear assumed it's own defensive stance.
This bear was not to be trifled with, and he stood up on his hind legs, reaching nine feet into the air, and his warning roar shook the leaves on the trees around them.
The woman decided to bluff the bear, and charge it but the bear stood his ground and returned the charge, leading the woman to roll to the side, out of the way. The one-armed man also dodged, in the opposite direction, and the bear once again stood tall, roaring with all his might, but the two humans did not stand down.
The bear was forced to resort to another tactic, and summoning up some kind of strange, otherworldly power, began to stretch and change his body. His fur darkened, and his body lengthened and tightened up, into the form of a large feline, some kind of huge panther, to the disbelief of the humans standing in front of him.
Again he stood on his hind legs and roared, this time with the voice of a panther, frightening the humans again, but still, they would not stand down, so the bear-cat decided to cut his losses. His attempts to escape at this point were blocked by the woman, so the strange bear summoned up yet another transformation, stretching out his legs, his claws transforming into hooves, and his head practically bursting into the form of a horse.
Rearing up and neighing loudly, the now-horse leaped over the woman and took off into the woods.
In total disbelief of what had just happened, the woman and the one-armed man looked at each other and vowed to never speak of this strange incident again.