A considerable group of the skating party had consisted of the guests staying at the house, and the rest had tailed off in twos and threes some time before most of the guests began to retire for the night.  Neighbors, always invited to Prior’s Park on such occasions, went back to their own houses in motors or on foot; the legal and archeological gentleman had returned to the Inns of Court by a late train, to get a paper called for during his consultation with his client; and most of the other guests were drifting and lingering at various stages on their way up to bed.  Horne Fisher, as if to deprive himself of any excuse for his refusal of early rising, had been the first to retire to his room; but, sleepy as he looked, he could not sleep.  He had picked up from a table the book of antiquarian topography, in which Haddow had found his first hints about the origin of the local name, and, being a man with a quiet and quaint capacity for being interested in anything, he began to read it steadily, making notes now and then of details on which his previous reading left him with a certain doubt about his present conclusions.  His room was the one nearest to the lake in the center of the woods, and was therefore the quietest, and none of the last echoes of the evening’s festivity could reach him.  He had followed carefully the argument which established the derivation from Mr. Prior’s farm and the hole in the wall, and disposed of any fashionable fancy about monks and magic wells, when he began to be conscious of a noise audible in the frozen silence of the night.  It was not a particularly loud noise, but it seemed to consist of a series of thuds or heavy blows, such as might be struck on a wooden door by a man seeking to enter.  They were followed by something like a faint creak or crack, as if the obstacle had either been opened or had given way.  He opened his own bedroom door and listened, but as he heard talk and laughter all over the lower floors, he had no reason to fear that a summons would be neglected or the house left without protection.  He went to his open window, looking out over the frozen pond and the moonlit statue in the middle of their circle of darkling woods, and listened again.  But silence had returned to that silent place, and, after straining his ears for a considerable time, he could hear nothing but the solitary hoot of a distant departing train.  Then he reminded himself how many nameless noises can be heard by the wakeful during the most ordinary night, and shrugging his shoulders, went wearily to bed.

He awoke suddenly and sat up in bed with his ears filled, as with thunder, with the throbbing echoes of a rending cry.  He remained rigid for a moment, and then sprang out of bed, throwing on the loose gown of sacking he had worn all day.  He went first to the window, which was open, but covered with a thick curtain, so that his room was still completely dark; but when he tossed the curtain aside and put his head out, he saw that a gray and silver daybreak