But it was from one little window, with its blind drawn down, a mere blank transparency on the night, that the sense of home and the little curtained world within walls--the larger stressful world of outside Nature shut out and forgotten--most pulsated. Close against the white blind hung a bird-cage, clearly silhouetted, every wire, perch, and appurtenance distinct and recognisable, even to yesterday's dull-edged lump of sugar. On the middle perch the fluffy occupant, head tucked well into feathers, seemed so near to them as to be easily stroked, had they tried; even the delicate tips of his plumped-out plumage pencilled plainly on the illuminated screen. As they looked, the sleepy little fellow stirred uneasily, woke, shook himself, and raised his head. They could see the gape of his tiny beak as he yawned in a bored sort of way, looked round, and then settled his head into his back again, while the ruffled feathers gradually subsided into perfect stillness. Then a gust of bitter wind took them in the back of the neck, a small sting of frozen sleet on the skin woke them as from a dream, and they knew their toes to be cold and their legs tired, and their own home distant a weary way.