In her fifth mystery, Sister Fidelma is faced with a challenging and disturbing case to investigate

When Sechnussach, High King of Ireland, is found dead in his bedchamber, all clues seem to suggest an obvious prime suspect. Dubh Duin, the chieftain of the clan Cinel Cairpre, was found with the murder weapon, before taking his own life. The Chief Brehon

Summer, AD 670. An Irish merchant ship is attacked by a pirate vessel off the coast of Bro Waroch, a southern kingdom of Breton peninsular. The captain and a prince from the kingdom of Muman are murdered. The prince was Sister Fidelma's cousin, so she is determined to bring the killers to justice.

As the leading churchmen and women gather at the Synod of Whitby in 664AD to debate the rival merits of the Celtic and Roman Churches, tempers fray. When the Abbess Etain is murdered suspicion rests on the Roman faction. Sister Fidelma is called on to investigate the murder with Brother Eadulf.

This carefully researched novel provides an authentic background for a host of remarkable characters and suspects. In this mystery Sister Fidelma joins forces with Brother Eadulf to try to piece together a strange jigsaw of evil and vengeance.

Sister Fidelma follows a trail that is as suspenseful as it is tortuous in the riveting third novel in Peter Tremayne's superb series

Sister Fidelma is thrown into a sinister mystery full of intrigue, danger and violence in the fourth novel of the series

As Fidelma proceeds through the valley of the shadow, she faces personal danger in the stunning sixth novel of the Sister Fidelma series

The stunning seventh novel in Peter Tremayne's atmospheric Sister Fidelma series

When Sister Fidelma sets out on a pilgrimage in the autumn of AD 666, her main task is to reflect on her commitment to religious life. On the first night aboard ship however, a pilgrim gets washed overboard and Fidelma finds herself embroiled in solving a mystery.