Seneca Falls, West Virginia, is a picturesque town. Tucked between the foothills of the Blue Ridge and Allegheny Mountains, it lives in the shadow of the Dunning and Munroe families, mining moguls who have competed for coal in the region for generations. It is a place Joshua Chac n would rather forget. The scorned biracial stepson of the Dunning dynasty, Chac n has acquired a national reputation and a Pulitzer Prize for his books revealing political...