For several miles before they reached Milton, they saw a deep lead-coloured cloud hanging over the horizon in the direction in which it lay. It was all the darker from contrast with the pale gray-blue of the wintry sky; for in Heston there had been the earliest signs of frost. Nearer to the town, the air had a faint taste and smell of smoke; perhaps, after all, more a loss of the fragrance of grass and herbage than any positive taste or smell. Quick they were whirled over long, straight, hopeless streets of regularly-built houses, all small and of brick. Here and there a great oblong many-windowed factory stood up, like a hen among her chickens, puffing out black “unparliamentary” smoke, and sufficiently accounting for the cloud which Margaret had taken to foretell rain.