You can't help but stare in remorse at this poor chap. Involuntarily, by chasing him, you had him doomed to watch the mirrors, and there's nothing you can do much in this current form to help. So you simply sit on your hauches and witness the metamorphosis.
Meanwhile, the man gets more and more panicked and confused. While his clothes disappear like thin air, his whole body shrivels and decreases quite fastly, shaping into something less than human. You can see his features taking the form of a quite large rodent, which makes you think firstly of a rabbit : it is further confirmed when his face's features take on said animal, with his ears notably growing to amazing lengths, and his nose melting into a snout.
His body, readjusting, balances in terms of weight and height. By now, fur takes over, giving him a pure white coat which highlights his newest form. He's not far from completion.
There's a few things remaining before it is over : you see his hands reshaping into strong paws, mounting his newly carved and agile forelegs, siblings to his powerful hindlegs and paws. But the very last thing that remains is his tail, and it pops into a cute and puffed cotton-tail.
You now stare at a very cute and plumpy rabbit, looking very much horrified by his new form given by misfortune.
You decide to approach the newly-turned rabbit, since it's no use chasing him in hope of making him leave untamed. He'll have to check countless times those mirrors in order to find back human shape.
Seeing you getting close, he gets nervous.
" S-Stay back ! " he suddenly stammers.
You're surprised to hear human speech from him, but say nothing and smile back at him.
" No ! Don't... don't eat me, please... "
" Luckily for you, I'm actually a vegetarian. " you reply back.
He makes screams of surprise.
" Oh ! Oh, dear, how come I understand you ?! "
" Animal speech, I guess. That, or I used to be like you before... "
His ears perk up when hearing your words.
" What do you mean ? "
You take a deep breath, which sounds like a low-pitched growl to him judging by the fact that he slightly shivers.
" It's the Hall of Mirrors. Judging by the concept, each time you stare at a mirror, it's a different you that takes place. And since it's completely random, you can either become something beautiful... "
You put a paw on your belly and snark.
" ...Like me, or something either disgusting, impracticable or remotely unwanted. "
The rabbit stares at the mirrors, towering over him at the moment.
" I see what you mean. " he replies. " So... You can try to change again and again ? "
" Yes. But it's risky. "
" What about you, then ? "
You take another deep breath, before sighing.
" I've given up on that - for now. Mind you, I was turned into a kid, before being brought back as a woman by some weirdo. I then tried to return to my male body, but it made me into a child again, then a cat, and finally this current form I bear at the moment. "
The rabbit is obviously struck by your story. He does not say anything, but you can that he's processing what he just learned from you.
" So... " you ask him. " What are you going to do ? "
The rabbit ponders for a bit. He then turns back to you, with what seems to be some sort of answer.