She cherished her anger until it grew strong and owned her—what happens when a grudge becomes a living thing on the river?

Jo heard Amy panting after her run, stamping her feet and blowing on her fingers as she tried to put her skates on, but Jo never turned and went slowly zigzagging down the river, taking a bitter, unhappy sort of satisfaction in her sister’s troubles. She had cherished her anger till it grew strong and took possession of her, as evil thoughts and feelings always do unless cast out at once. As Laurie turned the bend, he shouted back...