Ireland AD 670. When the body of a murdered young noble is discovered not far from Cashel the King calls upon Sister Fidelma and her companion Eadulf to investigate. The only clue to the noble's identity is an emblem originating from the nearby kingdom of Laign. Could the murder be somehow related to the violence erupting in the west of the kingdom? The turmoil is led by a fanatical figure claiming to have been summoned by “the seventh angel” to remove the “impure of faith” from the land. When Sister Fidelma herself becomes the victim of abduction it is up to Eadulf to find and save her from imminent death so that the mystery can be solved…

Part of the The Sister Fidelma Mystery Series series.