Anyone who has read a novel by Peter Tremayne will want to read them all. Ireland, 671: During the pagan festival of Samhain, which marks the beginning of winter, Brother Eadulf discovers a corpse in a monk's robe. Is there a connection between the dead man and the disappearance of a book from the papal secret archives in Rome that could have devastating consequences for the new faith in the five kingdoms of Ireland? As long as Fidelma and Eadulf have not solved the case, King Colgú of Cashel is in grave danger.