This being acknowledged a scientific, as well as a spiritual truth, there remains no mystery in the fact that Robin at six years old—when she watched the sparrows in the Square Gardens—did not know the name of the feeling which had grown within her as a result of her pleasure in the chance glimpses of the Lady Downstairs. It was a feeling which made her eager to see her or anything which belonged to her; it made her strain her child ears to catch the sound of her voice; it made her long to hear Andrews or the other servants speak of her, and yet much too shy to dare to ask any questions. She had found a place on the staircase leading to the Nursery, where, by squeezing against the balustrade, she could sometimes see the Lady pass in and out of her pink bedroom. She used to sit on a step and peer between the railing with beating heart. Sometimes, after she had been put to bed for the night and Andrews was safely entertained downstairs, Robin would be awakened from her first sleep by sounds in the room below and would creep out of bed and down to her special step and, crouching in a hectic joy, would see the Lady come out with sparkling things in her hair and round her lovely, very bare white neck and arms, all swathed in tints and draperies which made her seem a vision of colour and light. She was so radiant a thing that often the child drew in her breath with a sound like a little sob of ecstasy, and her lip trembled as if she were going to cry. But she did not know that what she felt was the yearning of a thing called love—a quite simple and natural common thing of which she had no reason for having any personal knowledge. As she was unaware of mothers, so she was unaware of affection, of which Andrews would have felt it to be superfluously sentimental to talk to her. On the very rare occasions when the Lady Downstairs appeared on the threshold of the Day Nursery, Robin—always having been freshly dressed in one of her nicest frocks—stood and stared with immense startled eyes and answered in a whisper the banal little questions put to her. The Lady appeared at such rare intervals and remained poised upon the threshold like a tropic plumaged bird for moments so brief, that there never was time to do more than lose breath and gaze as at a sudden vision. Why she came—when she did come—Robin did not understand. She evidently did not belong to the small, dingy nurseries which grew shabbier every year as they grew steadily more grimy under the persistent London soot and fogs. Feather always held up her draperies when she came. She would not have come at all but for the fact that she had once or twice been asked if the child was growing pretty, and it would have seemed absurd to admit that she never saw her at all.