In 1895, an extraordinarily enigmatic faith healer emerged in the American West. An Alsatian immigrant and former cobbler, Francis Schlatter looked like popular depictions of Jesus, and it was said that his very touch could heal everything from migraines and arthritis to blindness and cancer. First in Albuquerque, and then in Denver, thousands flocked to him, hoping to receive his healing touch. Schlatter accepted no money for his work, behaved modestly,...