A Theory of Relativity : A terrible accident has left little Keefer orphaned but not unwanted. Devastated by his beloved sister's tragic death, twenty-four-year-old bachelor Gordon McKenna assumes that he will be entrusted with raising his niece, whom he has grown extremely close to over the few precious months of Keefer's life. But the child's paternal grandparents have different ideas - and a fierce legal battle ensues that will test the capacity and limitations of family love again and again . . . and no one will emerge from it unscathed or unchanged. Jacquelyn Mitchard, whose powerful, emotionally rich novels have won resounding critical acclaim and a wide, enthusiastic audience worldwide, brings us a soaring, heartbreaking, and unforgettable tale of love and the bonds that unite us all.