Janet saw a classmate of Sarah's walking down the street - was her name Karyn? - with some girl Janet had never seen before. Wait, thought Janet, that's Sarah! The girl looked like a cross between Karyn and Sarah.
"Hi, Mrs. McMillan," said Janet's ex-daughter.
I'm not her mother anymore, thought Janet. I'm Mrs. McMillan to her now. "No!" Janet squeezed the stone. "I wish you were my daughter again!"