She began to weigh the concentrated impressions of a thousand memories. She and her sister were near in age; they knew each other with an extreme intimacy, and yet it seemed to Cissie that night as though she did not know Letty at all. A year ago she would have been certain she knew everything about her. But the old familiar Letty, with the bright complexion, and the wicked eye, with her rebellious schoolgirl insistence upon the beautifulness of "Boof'l young men," and her frank and glowing passion for Teddy, with her delight in humorous mystifications and open-air exercise and all the sunshine and laughter of life, this sister Letty, who had been so satisfactory and complete and final, had been thrust aside like a mask. Cissie no longer knew her sister's eyes. Letty's hand had become thin and unfamiliar and a little wrinkled; she was sharp-featured and thin-lipped; her acts, which had once been predictable, were incomprehensible, and Cissie was thrown back upon speculations. In their schooldays Letty had had a streak of intense sensibility; she had been easily moved to tears. But never once had she wept or given any sign of weeping since Teddy's name had appeared in the casualty list.... What was the strength of this tragic tension? How far would it carry her? Was Letty really capable of becoming a Charlotte Corday? Of carrying out a scheme of far-seeing vengeance, of making her way through long months and years nearer and nearer to revenge? Were such revenges possible? Would people presently begin to murder the makers of the Great War? What a strange thing it would be in history if so there came a punishment and end to the folly of kings! Only a little while ago Cissie's imagination might have been captured by so romantic a dream. She was still but a year or so out of the stage of melodrama. But she was out of it. She was growing up now to a subtler wisdom. People, she was beginning to realise, do not do these simple things. They make vows of devotion and they are not real vows of devotion; they love--quite honestly--and qualify. There are no great revenges but only little mean ones; no life-long vindications except the unrelenting vengeance of the law. There is no real concentration of people's lives anywhere such as romance demands. There is change, there is forgetfulness. Everywhere there is dispersal. Even to the tragic story of Teddy would come the modifications of time. Even to the wickedness of the German princes would presently be added some conflicting aspects. Could Letty keep things for years in her mind, hard and terrible, as they were now? Surely they would soften; other things would overlay them....