"And here was Mia, causing poor Linda such trauma, as if she hadn't been through enough, as if Mia were any kind of example of how to mother. Dragging her fatherless child from place to place, scraping by on menial jobs, justifying it by insisting to herself - by insisting to everyone - she was making Art. Probing other people's business with her grimy hands. Stirring up trouble. Heedlessly throwing sparks. Mrs Richardson seethed, and deep inside her, the hot speck of fury that had been carefully banked within her burst into flame. Mia did whatever she wanted, Mrs Richardson thought, and what would result? Heartbreak for her oldest friend. Chaos for everyone. You can't just do what you want, she thought. Why should Mia get to, when no one else did?
It was only this loyalty to the McCulloughs, she would tell herself, the desire to see justice for her oldest friend, that led her to step over the line at last: as soon as she could get away, she would take a trip to Pennsylvania and visit Mia's parents. She would find out, once and for all, who this woman was." (p185-6)
Stay safe. Be kind. Cause some chaos.