Devil's Seal (Sister Fidelma Mysteries Book 25), Paperback/Peter Tremayne

The latest historical mystery featuring Sister Fidelma, as she looks into a murder in 7th century Ireland. Peter Tremayne is the pseudonym of Peter Beresford Ellis, an established authority on the Celts who has published more than 25 books on the subject. 'The background detail is brilliantly defined...' }The Times{