Is the Devil sending his messengers from Rome? Ireland in the autumn of 671: Not far from the royal seat of the Kings of Munster, an elderly cleric and his companions are brutally murdered and robbed. But this is just the beginning. Death and damnation have evidently taken hold at the castle of Cashel. Even Fidelma seems unable to put a stop to the bloody events. Do the envoys from Rome, who will soon be regarded as messengers of the Devil, have something to do with it? A new case for Fidelma and Eadulf that truly demands everything from them. "A brilliant and enchanting heroine. Uncannily compelling." Publishers Weekly "Anyone who has read a novel by Peter Tremayne will want to read them all." NDR.