Mary finished her luncheon, still wondering, and when it was over, and Trimmle had brought the coffee to the drawing-room, her wonder had deepened to a first faint tinge of disquietude. It was unlike Boyne to absent himself without explanation at so unwonted an hour, and the difficulty of identifying the visitor whose summons he had apparently obeyed made his disappearance the more unaccountable. Mary Boyne’s experience as the wife of a busy engineer, subject to sudden calls and compelled to keep irregular hours, had trained her to the philosophic acceptance of surprises; but since Boyne’s withdrawal from business he had adopted a Benedictine regularity of life. As if to make up for the dispersed and agitated years, with their “stand-up” lunches and dinners rattled down to the joltings of the dining-car, he cultivated the last refinements of punctuality and monotony, discouraging his wife’s fancy for the unexpected; and declaring that to a delicate taste there were infinite gradations of pleasure in the fixed recurrences of habit. Still, since no life can completely defend itself from the unforeseen, it was evident that all Boyne’s precautions would sooner or later prove unavailable, and Mary concluded that he had cut short a tiresome visit by walking with his caller to the station, or at least accompanying him for part of the way. This conclusion relieved her from farther preoccupation, and she went out herself to take up her conference with the gardener. Thence she walked to the village post-office, a mile or so away; and when she turned toward home, the early twilight was setting in. She had taken a foot-path across the downs, and as Boyne, meanwhile, had probably returned from the station by the highroad, there was little likelihood of their meeting on the way. She felt sure, however, of his having reached the house before her; so sure that, when she entered it herself, without even pausing to inquire of Trimmle, she made directly for the library. But the library was still empty, and with an unwonted precision of visual memory she immediately observed that the papers on her husband’s desk lay precisely as they had lain when she had gone in to call him to luncheon. Then of a sudden she was seized by a vague dread of the unknown. She had closed the door behind her on entering, and as she stood alone in the long, silent, shadowy room, her dread seemed to take shape and sound, to be there audibly breathing and lurking among the shadows. Her short-sighted eyes strained through them, half-discerning an actual presence, something aloof, that watched and knew; and in the recoil from that intangible propinquity she threw herself suddenly on the bell-rope and gave it a desperate pull. The long, quavering summons brought Trimmle in precipitately with a lamp, and Mary breathed again at this sobering reappearance of the usual. “You may bring tea if Mr. Boyne is in,” she said, to justify her ring.