The author Peter Tremayne obviously has a great knowledge of Ireland in the 7th century and also on the Irish Law of the period. His Sister Fidelma book are attracting what can only be described as a cult following, but they are of interest to anyone who likes historical novels or mysteries. This series of books are set in Ireland in the 7th century, a time when there was total equality for women. The lead character is the beguiling Sister Fidelma. She is a brilliant scholar, a leading authority on Irish law and the sister of a king. This is also a period in history when celibacy was not yet a part of religious life.
AD 666, an old monk and a set of relics have disappeared during the night from the Abbey of Imleach. Obviously the monk who has gone missing is of great concern to the Abbey, but the missing relics are of much greater concern. The relics are the political symbol of the entire kingdom and their disappearance threatens to undermine the peace and stability of the land.
While on a visit to the Abbey, Sister Fidelma is asked to investigate the matter and with the help of her friend and companion Brother Eadulf, Fidelma begins slowly but surely to unravel the mystery, but there are people who will stop at nothing, including murder to achieve their way.