Part memoir, part sweeping journalistic saga: As Casey Parks follows the mystery of a stranger's past, she is forced to reckon with her own sexuality, her fraught Southern identity, her tortured yet loving relationship with her mother, and the complicated role of faith in her life. Most moving is Parks's depiction of a queer lineage, her assertion of an ancestry of outcasts, a tapestry of fellow misfits into which the marginalized will always,...