The name "Geronimo" came to Corine Sombrun insistently in a trance during her apprenticeship to a Mongolian shaman. That message and the need to understand its meaning brought her to the home of the legendary Apache leader's great-grandson, Harlyn Geronimo, himself a medicine man on the Mescalero Apache reservation in New Mexico. Together, the two of them--the French seeker and the Native American healer--would make a pilgrimage that retraced Geronimo's...