'If you marry into glass you enter a closed world' ...So Pierre Labbe warned his daughter in 1747. But tall, blonde Magdaleine was not daunted. To her the tight traditions of the glass-blowers made a world she could rule over - and rule she did. But for her children that world would be different. This is Daphne du Maurier's warm, human saga of a family of craftsmen in eighteenth-century France - with the violence and terror of the Revolution as a clamouring background against which their loves and their hopes are played out.