The sound of the mirror breaking seems to have alerted the occupants (or mirror occupants) of the house, as you hear footsteps rapidly approaching.
To your suprise you see an anthromorthic fox, a little smaller than you, emerging from one of the doorways. He is dressed in a tweed waistcoat and silk cravat, and wears nothing below his waist.
"Who are you??" he demands "What are you? And what have you done to my mirror??". He scowls at you, exposing his sharp teeth.