For many Africanist historians, traditional religion is simply a starting point for measuring the historic impact of Christianity and Islam. In Tongnaab, Jean Allman and John Parker challenge the distinction between tradition and modernity by tracing the movement and mutation of the powerful Talensi god and ancestor shrine, Tongnaab, from the savanna of northern Ghana through the forests and coastal plains of the south. Using a wide range of written, oral, and iconographic sources, Allman and Parker uncover the historical dynamics of cross-cultural religious belief and practice. They...