To the uninitiated, Savannah shows only her bright face and genteel manner. Those who know her well, though, can see beyond her colonial trappings and small-city charm to a world where witchcraft is respected, Hoodoo is feared, and spirits linger. Mercy Taylor is all too familiar with the supernatural side of Savannah, being a member of the most powerful family of witches in the South. Despite being powerless herself, of course. Having grown up without...