Clemantine Wamariya was six years old when her mother and father began to speak in whispers, when neighbors began to disappear, and when she heard the loud, ugly sounds her brother said were thunder. In 1994, she and her fifteen-year-old sister, Claire, fled the Rwandan massacre and spent the next six years migrating through seven African countries, searching for safety -- perpetually hungry, imprisoned, and abused, enduring and escaping refugee camps,...