Yay Lexie reunited with family. It turns out the people that took Lexie the other day thought they were helping, so it was a misunderstanding. Because the cat is a bit underweight and with her medication, her fur is a bit thin, they thought she might have been a stray and chose to look after her, and they did, so I'm grateful for that. She was quite happy when returned. Thanks to people who responded to the posting on here and to the police who were very helpful. Thanks to the people that looked after the cat.