“Now, dear, we have not been happy together lately. You have seen it; so have I. I fear our engagement was a mistake, so I'm going to send back your ring to-morrow, and I'm writing this letter to-night. Please don't try to see me just yet. You _know_ what I am doing is best--all round. “Always your friend, “BILLY.” CHAPTER XXXI. FLIGHT Billy feared if she did not mail the letter at once she would not have the courage to mail it at all. So she slipped down-stairs very quietly and went herself to the post box a little way down the street; then she came back and sobbed herself to sleep--though not until after she had sobbed awake for long hours of wretchedness. When she awoke in the morning, heavy-eyed and unrested, there came to her first the vague horror of some shadow hanging over her, then the sickening consciousness of what that shadow was. For one wild minute Billy felt that she must run to the telephone, summon Bertram, and beseech him to return unread the letter he would receive from her that day. Then there came to her the memory of Bertram's face as it had looked the night before when she had asked him if she were the cause of his being troubled. There came, too, the memory of Kate's scathing “Do you want to ruin his career?” Even the hated magazine article and Marie's tragic “I've _hindered_ him!” added their mite; and Billy knew that she should not go to the telephone, nor summon Bertram. The one fatal mistake now would be to let Bertram see her own distress. If once he should suspect how she suffered in doing this thing, there would be a scene that Billy felt she had not the courage to face. She must, therefore, manage in some way not to see Bertram--not to let him see her until she felt more sure of her self-control no matter what he said. The easiest way to do this was, of course, to go away. But where? How? She must think. Meanwhile, for these first few hours, she would not tell any one, even Aunt Hannah, what had happened. There must _no one_ speak to her of it, yet. That she could not endure. Aunt Hannah would, of course, shiver, groan “Oh, my grief and conscience!” and call for another shawl; and Billy just now felt as if she should scream if she heard Aunt Hannah say “Oh, my grief and conscience!”--over that. Billy went down to breakfast, therefore, with a determination to act exactly as usual, so that Aunt Hannah should not know--yet. When people try to “act exactly as usual,” they generally end in acting quite the opposite; and Billy was no exception to the rule. Hence her attempted cheerfulness became flippantness, and her laughter giggles that rang too frequently to be quite sincere--though from Aunt Hannah it all elicited only an affectionate smile at “the dear child's high spirits.” A little later, when Aunt Hannah was glancing over the morning paper--now no longer barred from the door--she gave a sudden cry.