Damaris Moore keeps having a recurring dream of being chased through a dark forest by unseen demons prodding her with pointed sticks as she runs for a large beech tree, seeking the shelter of its overhanging branches that seems to offer her sanctuary.Always at this point, she wakes up. But is it only a dream? Or is it infinitely more frightening: an out-of-body experience in which she is travelling back in time to be someone else, before she was even...