How are Cassia and her family warned about their behavior with the cutting of the maple trees?

Things are not going smoothly in Cassia's life. She is on edge, knowing that she is defying the rules of Society. When she wakes up to shrieking, her immediate concern is for her family. The entire neighborhood is discombobulated. Society is taking away another piece of beauty. First the Officials took their artifacts, and now they are taking the very trees their street is named after. Trauma is linked to Ky's family as it's pointed out that the last time someone was seen outside in their sleepclothes before this occasion was when Ky's adoptive father was running around after his son died. It comes to light that Cassia isn't the only one rebelling against Society. Her mom and dad both take this situation as a warning to them based on their own actions.