In the twelfth century AD, Venice is little more than an agglomeration of small islands snatched from the muddy tides. The magnificent city-lagoon of Venice, the rich and powerful Serene Republic, is yet to be born. Here, in this northern backwater, a group of artisans have proven themselves to be unrivalled in an art form that produces works of such astounding beauty that many consider it mystical in nature and think its practitioners possessed of...