For more than two decades, Theresa S. Betancourt has followed the lives of children (now adults) who returned home after being forced to fight in the civil war that ravaged Sierra Leone from 1991 to 2002. Thousands of children unwillingly participated in the violent conflict as soldiers, spies and laborers. Many took part in attacks on their own neighbors and relatives, many faced sexual violence, many witnessed unspeakable atrocities. Sahr ... was kidnapped as a toddler and spent four years with rebel fighters, returned to rejection and isolation. Then there is Isatu, age 12 when rebels attacked her village, capturing her and her sister. Isatu's experience upon her return was much different. Initial support from her family and community, combined with her own motivation, led to more help from an extended network. "Isatu's perseverance generated additional ripples of support, soon to become a self-fulfilling virtuous cycle," Betancourt writes. Isatu is now a doctor. In her new book, Betancourt ... shares what she has learned about the factors that have helped some of these people recover and even thrive. Shadows into Light is both heart-wrenching and heartening. It tells the stories of the trauma these children faced, their reunion with family, their reintegration into their communities, and their ongoing struggles and healing. One research finding is the importance of family, community, and societal and cultural influences on a person's trajectory - what psychologist Urie Bronfenbrenner described as "social ecology."