"Ah, here we are; if we go round this corner I shall be home in five minutes. Perhaps we shall arrive before the others, after all. You have brought me so quickly that there is no time for them to have been anxious, unless Miles went in alone." The stranger did not answer. They turned round the corner of Stanhope Terrace and walked along for twenty or thirty yards, then suddenly he stood still, and dropped her arm. "I may never meet you again," he said slowly; "in all probability we never shall meet, but before we part, let me see your face, Betty!" There was a sound of a match being struck against the side of a box, then a tiny flame flickered up in the darkness. Betty gazed upwards into a face still young, but haggard and drawn with suffering, a long thin face with deep-set eyes and a well-cut chin. "Now, now, now," she was saying breathlessly to herself. "I must notice! I must remember! I shall have to remember for so many years--" The flame quivered and faded away. "Thank you," said the stranger quietly. "I shall remember!" Evidently his thoughts and hers had followed the same course. They walked along slowly side by side, but no longer arm in arm, for that momentary exchange of glances had brought a touch of personal embarrassment into the situation which had been unfelt before. Betty was anxiously pondering what to say in farewell, feeling at the same time that further words would be more likely to mar than to aid the impression already made, when suddenly a form loomed through the darkness, and a well-known "Coo-ee" sounded in her ears. "Miles--oh, Miles! I'm here! Oh, Miles, I am so glad! I was so frightened, but this gentleman has been so kind. He has brought me all the way home." Miles grunted discourteously; he disapproved of stray acquaintances for his sister, and now that anxiety for her safety was assuaged, began to feel aggrieved at having been frightened for nothing. "What on earth did you mean by rushing off by yourself? Might have been lost all night. I've been hanging about for an age, not daring to go into the house and scare the mater. Never go out with you again in a fog!" Betty laughed merrily. "I can return that compliment. It seems to me that you ran away from me." She turned to hold out her hand to the stranger. "Now that my brother is here I need not trouble you any more. Good-bye! Thank you very much!" "Thank you!" he said earnestly. "Good-bye until--a brighter day." "What does that bounder mean by talking of another day? Cheek!" grunted Miles, leading the way onward, but Betty only pressed his arm and replied irrelevantly-- "Don't say anything about our having missed each other when we first go in, Miles. I'll tell mother quietly. I'd rather, if you don't mind." Miles did not mind a bit--in fact, he was thankful to be spared questioning and reproach, so he made his way upstairs to his room, while Betty entered the study, where Dr and Mrs Trevor were seated.