THE CAT CAME BACK
Update from yesterday...
Isis returned home about an hour ago. Though the neighbor had checked his basement on Sunday, she had decided to stay hidden there until today. So, she was one door away the entire time.
Mother and child are doing fine. I was just over there delivering some food Sadie gave as a homecoming gift, since all of Isis' food had been put out on the porch the night before to try to lure her home.
Thanks to all who sent well wishes and who passed the word around.