Even if Madam Fisher wanted Caroline to gain some experience in overcoming tribulations, she would not risk Caroline’s life.
If the car had been hit by other cars when it broke down, it would be challenging to ensure that Caroline was unscathed.
Madam Fisher might have seemed like she still favored Celine and mistreated Caroline, but she prioritized blood relations. Caroline was her biological daughter, who had finally returned to her. She would not risk Caroline’s life, no matter how ruthle