Amy is pondering how they might get rid of their mother, considering different ideas. She thinks about having her leave to take care of a sick neighbor so they can be alone at home. The situation makes her wonder what options they have to be free from their mother's presence temporarily.
The quote shows Amy's initial creative but mischievous thoughts about escaping their mother's supervision. It reflects her desire for independence or a break from her mother, revealing her feelings and the dynamics of their family situation.