SMD-
Sorry to hear about Biscuit(cute name BTW) getting out. Funny how they can latch onto your heart in such a short time. Yeah people may need assistance but they can change that and many don't because they are freaking lazy and expect handouts, it's a lifestyle. Animals are a different deal altogether and you guys did a good thing. You may be surprised and she may remain close to your place, the feral ones can be wicked smart. Besides, it sounds like you have made an impact on her already, purring and playing is huge. We wish you the best in this situation. Onyx, now and indoor lump was the same way. When she was a kitten, we trapped her and her family. Had them all fixed, recovered and released back onto the property. Onyx was slow to leave the cage and wasn't as conditioned as Biscuit but she hung around. It's weird but they know a good thing. Smart call on "doing the right thing" with the Mrs'.... been there and done that too.
Had a similar "rescue" with a bird(scrub jay I believe). Fell from a nest at the parents ranch and as careful as I could be with gloved hands and tried to re-nest, parents never came back. Hand raised this little lump of skin, took it to work and everywhere to feed every hour, would recognize me when I walked into the room, etc. Kinda funny to see me carrying around a chirping box, my only successful bird rescue too. I enjoyed walking around the room with it on my hand fast enough to get it to open its wings as if getting ready to fly. The wife, who doesn't do well with birds anyway, wanted to see it when it was a bit older. She cracks the door to look, then freaks when it flys towards her. She slams the door right on the little guy, DRT! Talk about remorse. As furious as I was, all I could do was comfort her.
The things we do, right?
Hope she shows back up
Our "ex"-feral princess of the downstairs. At least she thinks she is. More the couch potato princess.