Saints' cults in the Celtic world. Edited by Steve Boardman, John Reuben Davies and Eila Williamson. (Studies in Celtic History, 25.) Pp. xiii+220. Woodbridge: Boydell Press, 2009. £50. 978 1 84383 432 8; 0261 9865 - MacDonald, Iain (The journal of ecclesiastical history, 2010)