City of One is a poignant and beautifully written memoir of childhood loss and its enduring meaning. Francine Cournos was three years old when her father died, and by the time she was eleven, her mother was dead of breast cancer. "I had been hurled over a cliff," she writes. "The irreversibility of what had happened crashed down on me; a nauseating wave of fear and a flood of tears followed. I didn't know who I was without my mother. What would fill...