Sister Fidelma investigates in Burgundy, Autun, in the year 670: Just before the start of the council, there are altercations among the church dignitaries. During the night, an Irish bishop is murdered. Fidelma and Eadulf are hindered in their investigations by misogynistic monastic rules. Risking their lives, they uncover dark secrets in the land and in the abbey. Tremayne's Celtic crime novels have achieved cult status worldwide. Sister Fidelma is a clever, emancipated, and courageous woman who out-argues her opponents.