" I looked at the back of Jessica's silky bent head and thought of those old stories where one twin is hurt and the other, miles away, feels the pain. I wondered if there had been a moment, during that giggly girls' night at Auntie Vera's, when she had made some small, unnoticed sound; if all the answers we wanted were locked away behind the strange dark gateways of her mind. "

― Tana French , In the Woods (Dublin Murder Squad, #1)