The Greeks called it peripeteia-- the terrible fall from hubristic heights. And perhaps never in history has a city fallen so far or so fast as did Paris during this period 1867-1871. Within Just three years of the glittering Great Exhibition of 1867 the city was reduced to a diet of rats by the conquering King of Prussia. And in the bloody civil war that followed, more than 20,000 persons were slaughtered on the streets by their countrymen. Mr. Horne, a British Journalist, recreates the events in nightmarish detail. He writes in a sharp, scholarly manner even though his voluminous vocabulary may deter the average reader. And then the relative obscurity of the topic would seem to militate against popular success. Yet the execution is excellent.