"In A.D. 664, King Oswy of Northumbria has convened a synod at Whitby to hear debate between the Roman and Celtic Christian churches and decide which shall be granted primacy in his kingdom. At stake is much more than a few disputed points of ritual; Oswy's decision could affect the survival of either church in the Saxon kingdoms. When the Abbess Etain, a leading speaker for the Celtic church, is found murdered, suspicion falls upon the Roman faction....
In 7th century Ireland, Sister Fidelma investigates the death of a Celtic chieftain. A blind deaf-mute monk has been charged with murder, but the sister thinks he is innocent.
In seventh-century Ireland, Sister Fidelma investigates the brutal murders of an abbess--who is the niece of the Ui Fidgente warlord Conri--and one of the abbey's senior scholars as well as the disappearance of six young nuns, events that may be connected to the mysterious "Master of Souls" stirring up trouble in the countryside.
Investigating the murder of an eminent scholar who was robbed of mysterious manuscripts, Sister Fidelma and her companion, Brother Eadulf, are quickly targeted by the same killer in a case that is complicated by divisive personal problems. By the author of The Council of the Cursed.
On her trip home from Rome, Sister Fidelma unexpectedly finds herself in Genoa, where she learns of the imminent death of a former mentor who imparts information about a conspiracy that is triggering murders and a vicious war.
Summoned by her brother, the king, when the body of a murdered noble is discovered near Cashel in 670 Ireland, Fidelma and her companion, Eadulf, follow scanty clues linking the victim a violent uprising under the leadership of a religious fanatic. By the author of Behold a Pale Horse.