There was one little indulgence which Abercrombie Smith always allowed himself, however closely his work might press upon him. Twice a week, on the Tuesday and the Friday, it was his invariable custom to walk over to Farlingford, the residence of Dr. Plumptree Peterson, situated about a mile and a half out of Oxford. Peterson had been a close friend of Smith's elder brother Francis, and as he was a bachelor, fairly well-to-do, with a good cellar and a better library, his house was a pleasant goal for a man who was in need of a brisk walk. Twice a week, then, the medical student would swing out there along the dark country roads, and spend a pleasant hour in Peterson's comfortable study, discussing, over a glass of old port, the gossip of the 'varsity or the latest developments of medicine or of surgery. On the day which followed his interview with Monkhouse Lee, Smith shut up his books at a quarter past eight, the hour when he usually started for his friend's house. As he was leaving his room, however, his eyes chanced to fall upon one of the books which Bellingham had lent him, and his conscience pricked him for not having returned it. However repellent the man might be, he should not be treated with discourtesy. Taking the book, he walked downstairs and knocked at his neighbour's door. There was no answer; but on turning the handle he found that it was unlocked. Pleased at the thought of avoiding an interview, he stepped inside, and placed the book with his card upon the table. The lamp was turned half down, but Smith could see the details of the room plainly enough. It was all much as he had seen it before--the frieze, the animal-headed gods, the banging crocodile, and the table littered over with papers and dried leaves. The mummy case stood upright against the wall, but the mummy itself was missing. There was no sign of any second occupant of the room, and he felt as he withdrew that he had probably done Bellingham an injustice. Had he a guilty secret to preserve, he would hardly leave his door open so that all the world might enter. The spiral stair was as black as pitch, and Smith was slowly making his way down its irregular steps, when he was suddenly conscious that something had passed him in the darkness. There was a faint sound, a whiff of air, a light brushing past his elbow, but so slight that he could scarcely be certain of it. He stopped and listened, but the wind was rustling among the ivy outside, and he could hear nothing else. "Is that you, Styles?" he shouted. There was no answer, and all was still behind him. It must have been a sudden gust of air, for there were crannies and cracks in the old turret. And yet he could almost have sworn that he heard a footfall by his very side. He had emerged into the quadrangle, still turning the matter over in his head, when a man came running swiftly across the smooth-cropped lawn. "Is that you, Smith?" "Hullo, Hastie!"