Stories about siblings abound in literature, drama, comedy, biography, and history. We rarely talk about our own siblings without emotion, whether with love and gratitude, or exasperation, bitterness, anger and hate. Nevertheless, the subject of what it is to be and to have a sibling is one that has been ignored by psychiatrists, psychologists and therapists. In My Dearest Enemy, My Dangerous Friend, Dorothy Rowe presents a radically new...