In 2001, Sharon Pincott traded her privileged life as a high-flying corporate executive to start a new one with the Presidential Elephants of Zimbabwe. She was unpaid, untrained, self-funded, and arrived with the starry-eyed idealism of most foreigners during early encounters with Africa. For 13 years--the worst in Zimbabwe's volatile history--this intrepid Australian woman lived in the Hwange bush fighting for the lives of these elephants, forming...