Everything! and yet did not in the least understand. What had been the meaning of it all? It was more like a nightmare than ever as all the different incidents come back upon her mind. The lingering, the wild talk--the question, "Must I go away?" The cry "I love you. I adore----" and nurse coming in to save her mistress perhaps from wilder utterances still. "Was it indispensable that he should go by the last train?" What a question! Was it not indispensable--more! exacted by every feeling, by every necessity? "I love you, I adore----" Oh yes, these words made poor Nelly's heart beat; but they were not words a man should have said in the silence of the night to a woman without any protection, with a wild heart leaping and struggling in her bosom, and to whose code of possible existence something else, something very different, was needful. Was it indispensable?--oh! it was not, it was not _that_, a man should have asked. He might love her, but what kind of love was it to humble a woman in her own esteem, to make her ask herself, "What have I done, oh what have I done, that I should be spoken to so?" Nelly did not think of her reputation, of honour, or, as he dared to suggest, of what people might say. Mrs Grundy! That was all very well for the light follies that mean nothing, the laughing transgression of a formal rule. But the shock of his look, the horror of his return, struck at her very being. It seemed to her that she could die of shame only to remember it. And what could he think of her? Was it indispensable? Had not she left the window open for him? Had she not known he would come back? O God, O God! These words, that come to us by instinct at the most dreadful moments, were not profane exclamations in poor Nelly's case. She sat up in her bed, and wrung her hands, and uttered that wild appeal--not a prayer, for her brain was too distracted for prayer--but only an appeal, a cry. The words he had said kept whirling through her mind, till they came to have no meaning except the one meaning of horror and pain: "indispensable," and "Mrs Grundy," and "you knew I would come back." Oh, what kind of woman must he have thought her to think that she knew he would come back, to leave the window open for him? The last train, was it indispensable? and the window left open--and Nelly had to seize herself, as it were, with both hands, to keep her reason, to stop the distracted rush of those words over and over and over again through her brain. There was a lull when nurse came in--nurse, who had been her saviour from she did not know what, who had cut the dreadful knot, but who must not, not even she, know the tempest which was going on in Nelly's being. She stopped that nervous wringing of her hands, pulled herself together, tried to smile. "How dreadfully late I am! How did I come to be so late?" she cried. "It was the fright, ma'am, last night."