The nineteenth century has usually been seen as principally the time of these ‘masters of suspicion’ in Europe: a century of disenchantment with Christianity and the supernatural in an age of science, a period of ebbing of European faith. Yet it was crowded with visionaries both Catholic and Protestant, full of excitement about the End Times, noisy with the sound of building for new churches and monasteries and the voices of furious quarrels about the best way forward for Christian renewal.