I have been searching for this book for quite some time and can't remember the title or the author. It is about twin girls whose parents are killed when the twins are quite young. One parent is black and one parent is white. When parents are killed each set of grandparents takes one girl to raise so one is raised white and one black. the girls do not know about each other or that they are bi-racial. One of them discovers the truth as an adult and eventually is led to her twin sister. Great story and would love to read it again.