The 'Dark Ages' (i.e. approximately the fourth to tenth centuries AD) are popularly considered a period of history about which people know little beyond the presumption that life was short and hard. Christianity, whether in or out of the monasteries, is often presented as a largely impersonal, formal religion - little more than the culture of the time. But is that a true picture? Or did 'the light of the glorious gospel of Christ' shine as brightly then as in other 'dark' periods of history? In particular, did it shine through the original Celtic version of Christianity in such a way that we...