Elizabeth Rees is a Roman Catholic nun with a Master’s degree from Oxford. She is one of Britain’s leading authorities on the Celtic saints in relation to the sites where they lived and worked. For this, she has travelled extensively in the more remote Celtic regions. She lectures on Celtic Christianity at venues around Britain; for seven years she was a guest lecturer at the Centre for the Study of Religion in Celtic Societies at the University of Wales, Lampeter. The author of nine books on early Christianity, Elizabeth is also a counsellor and retreat leader. She runs a House of Prayer in rural Somerset.