With a terrible effort of will he pulled his face quite straight again, and assumed his usual grave and quiet demeanour. For a full minute he stood looking at himself in the glass; and then, fearful that some one else would come and surprise him, he hurried down the remaining steps, and rushed out into the streets of London. Which way he turned he did not know or care; all he knew was that he was repressing by sheer force of muscular strain a deadly impulse to pucker up his mouth and draw down the corners of his lips into one-sided grimaces. As he passed down the streets, he watched his own image faintly reflected in the panes of the windows, and saw that he was maintaining outward decorum, but only with a conscious and evident struggle. At one doorstep a little child was playing with a kitten; Arthur Greatrex, who was a naturally kindly man, looked down at her and smiled, in spite of his preoccupation: instead of smiling back, the child uttered a scream of terror, and rushed back into the house to hide her face in her mother's apron. He felt instinctively that, in place of smiling, he had looked at the child with one of his awful faces. It was horrible, unendurable, and he walked on through the streets and across the bridges, pulling himself together all the time, till at last, half-unconsciously, he found himself near Pimlico, where the Aburys were then living. Looking around him, he saw that he had come nearly to the corner where Hetty's little drawing-room faced the road. The accustomed place seemed to draw him off for a moment from thinking of himself, and he remembered that he had promised Hetty to come in for luncheon. But dare he go in such a state of mind and body as he then found himself in? Well, Hetty would be expecting him; Hetty would be disappointed if he didn't come; he certainly mustn't break his engagement with dear little Hetty. After all, he began to say to himself, what was it but a mere twitching of his face, probably a slight nervous affection? Young doctors are always nervous about themselves, they say; they find all their own symptoms accurately described in all the text-books. His face wasn't twitching now, of that he was certain; the nearer he got to Hetty's, the calmer he grew, and the more he was conscious he could relax his attention without finding his muscles were playing tricks upon him. He would turn in and have luncheon, and soon forgot all about it.