Sorry, Mario.

"Sorry, Mario, your Princess is in another apartment." So here is the source of all the fuss and goodwill - Princess. We finally caught her, which means we can now get her to the vet. She doesn't look too bad in this photo but it's misleading. She's a VERY tiny cat to start with and little more than bones underneath the fur. She's clearly very sore and VERY hungry. She's been fed, given some water, and is now sitting by the door hoping to be let out.

Fat chance, skinny kitty.

So now to book the vet and get her taken care of, as well as dealing with the magic of teaching three kitties to get along. I suspect there shall be much hissing and growling this eve. ETA: She's growling at her own reflection in the mirror...