But as he reached this final stage of his reasoning, Colwyn stopped short in something like dismay. He had left a point of vital importance out of his calculations. If the murderer was the man he thought, he was downstairs in the dining-room at the time the false shot was fired. Then whose hand had clutched Hazel Rath's throat in the murdered woman's bedroom upstairs, just before the shot was fired? Colwyn slowly paced up and down the room in the midnight silence, conning all the facts over again in the light of this overlooked incident. CHAPTER XXVIII The three dined together in the big dining-room almost in silence. Musard and Philip Heredith had not returned until after six, and their first knowledge of Colwyn's presence was by some oversight deferred until they met at the dinner table. In the awkwardness of that surprise they sat down to dine, and Musard's half-hearted efforts to start a conversation met with little response from his companions. Colwyn was preoccupied with his own thoughts, which apparently affected his appetite, for he sent away dish after dish untouched. Phil hastened the service of the meal considerably, as though he were anxious to get it over as speedily as possible in order to hear what the detective had to say. As soon as the dessert was on the table he turned to Colwyn eagerly and asked him if he had any news. "I have many things to say," was the response. "In that case, shall we take our coffee into the smoking-room?" suggested Musard with a slight glance at the hovering figure of the butler. "I prefer to remain here, if you do not mind," said Colwyn. Musard shot a puzzled look at him, which the detective met with a clear cold gaze which revealed nothing. There was another silent pause while they waited for the butler to leave the room. But Tufnell was pouring out coffee and handing cigars with the slow deliberation of a man sufficiently old to have outlived any illusions about the value of time. Philip Heredith lit a cigarette. Musard waved away the cigar-box and produced a strong black cheroot from the crocodile-skin case. Colwyn declined a cigar, and his coffee remained untasted in front of him. "You can leave the room now, Tufnell," said Phil impatiently. "Do not return until I ring. We do not wish to be disturbed." Tufnell bowed and left the room. As he did so Colwyn pushed back his chair and walked across to the window, where he stood for a few moments looking out. A wan young moon gleamed through the black tapestry of the avenue of trees, pointing white fingers at the house and plunging the old garden into deep pools of shadow. The trees huddled in their rows, whispering menacingly, and stretching half-stripped branches to the silent sky. Colwyn returned to the table and confronted the two men who were awaiting him. He glanced from one to the other of their attentive faces, and said abruptly: "Hazel Rath is innocent."