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.
In this the fourth book in a must read series of Irish mysteries, Sister Fidelma is called to investigate a murder at a remote abbey. But when she arrives there that is not the only mystery that awaits her. There is also the strange disappearance of a ship and all its crew.