In September's edition of World Book Club superstar US novelist Jodi Picoult talks about her heart-rending novel My Sister's Keeper. A searing examination of what it means to be a good parent, a good sister, a good person - My Sister's Keeper confronts the question of whether it is morally correct to do whatever it takes to save a child’s life. In the programme Jodi talks with disarming openness about the near tragedy in her own life that helped to drive her to write the novel and she explains why for her writing feels like a form of schizophrenia.