In Case I Go Missing

When Eloise was eight years old, she found something under the floorboard in her bedroom. She did not tell anyone. She put it back, pressed the board flat, and learned to walk across it without hesitating. She has been doing that ever since.
Eloise is eleven now. She makes porridge the same way every morning, sets two bowls on the table, and does not look at the second one. She tracks her mother's moods with the precision of someone who has learned that early warnings are the only kind worth...