By the age of thirteen, Anna had undergone numerous operations and medical procedures so that her sister Kate could fight leukemia, a dark shadow hanging over the girl from an early age. Conceived as the perfect bone marrow donor for her sister, Anna never objected to her role... until now. Like most teenagers, she begins to wonder who she really is. And so Anna makes a decision that will split her family and will probably have fatal consequences for her beloved sister... The novel “An Angel for a Sister” poses the problem of a difficult moral choice. Is it moral to save one child at the expense of another?