"'A fascinating story about a religion in a surprisingly precarious position' Dan Jones, Sunday Times 'Superb storytelling ... captivating and profound' Literary Review 'A page-turner' The Spectator In the fourth century AD, a new faith exploded out of Palestine. Overwhelming the paganism of Rome, and converting the Emperor Constantine in the process, it resoundingly defeated a host of other rivals. Almost a thousand years later, all of Europe was controlled by Christian rulers, and the religion, ingrained within culture and society, exercised a monolithic hold over its population. But, as Peter Heather shows in this compelling history, there was nothing inevitable about Christendom's rise to Europe-wide dominance. In exploring how the Christian religion became such a defining feature of the European landscape, and how a small sect of isolated congregations was transformed into a mass movement centrally directed from Rome, Heather shows how Christendom constantly battled against both so-called 'heresies'