She came back again today. I went out and pet her, and then took her to her new home. It's just two doors down, so I don't know if keeping her indoors longer would make a difference. Her old home is catercorner to us, and she's not making any attempt to go back there. The worst part is, Jamie seems to miss her - he keeps looking in the guest room for her, and sniffing at the cat flap (locked) in the door to our laundry room. She's still getting antibiotics for the bites he gave her, so I really know I can't let her back in here, other than in the laundry room. I'm keeping the cat flap in the window there locked right now, to try to force her to stay with Mrs. R., whose cat is making no objections to Zsa Zsa being there (they know each other from outdoor encounters, and Putzi is great with other cats). I do feel guilty, though.