A New York Times Notable Book: A luminous, deeply affecting story of divorce, remarriage, and parenthood.   Peter and Emma, two single parents who have found love again after failed first marriages, dream of a peaceful and happy blended family with each of their daughters under one roof. They navigate this treacherous territory with the best of intentions, but face resistance from the girls, who, like many children of divorce, find their relationships tinged by grief, anger, and resentment. Emma's three-year-old daughter, Tess, takes to the arrangement while Amanda, Peter's sullen and unhappy seven-year-old, views it as a disaster rather than a fresh start. Over the course of this emotional powerhouse of a novel, Amanda becomes increasingly hostile and alienated-until one night she commits an act that threatens the already fragile bonds of the fledgling family.   Set on the Upper East Side of Manhattan, This Is My Daughter is a skillful and sensitive portrayal of the challenges facing modern families from master of the contemporary novel Roxana Robinson, whose acute observations of domestic life invite comparison to John Cheever and Henry James.