And for a time neither of them spoke. Whatever went on in the mind of Daniels, it was something that contorted his face. As for Byrne, he was trying to match fact and possibility and he was finding a large gap between the two; for he tried to visualise the man whose presence had been food to old Joe Cumberland, and whose absence had taken the oil from the lamp so that the flame now flickered dimly, nearly out. But he could build no such picture. He could merely draw together a vague abstraction of a man to whom the storm and the wild geese who ride the storm had meaning and relationship. The logic which he loved was breaking to pieces in the hands of Randall Byrne. Silence, after all, is only a name, never a fact. There are noises in the most absolute quiet. If there is not even the sound of the cricket or the wind, if there are not even ghost whispers in the house, there is the sigh of one's own breathing, and in those moments of deadly waiting the beat of the heart may be as loud and as awful as the rattle of the death-march. Now, between the doctor and the cowpuncher, such a silence began. Buck Daniels wanted nothing more in the world than to be out of that room, but the eye of the doctor held him, unwilling. And there began once more that eternal waiting, waiting, waiting, which was the horror of the place, until the faint creakings through the windshaken house took on the meaning of footsteps stalking down the hall and pausing at the door, and there was the hushing breath of one who listened and smiled to himself! Now the doctor became aware that the eye of Buck Daniels was widening, brightening; it was as if the mind of the big man were giving way in the strain. His face blanched. Even the lips had no colour, and they moved, gibberingly. "Listen!" he said. "It is the wind," answered the doctor, but his voice was hardly audible. "Listen!" commanded Daniels again. The doctor could hear it then. It was a pulse of sound obscure as the thudding of his heart. But it was a human sound and it made his throat close up tightly, as if a hand were settling around his wind-pipe. Buck Daniels rose from his chair; that half-mad, half-listening look was still in his eyes--behind his eyes. Staring at him the doctor understood, intimately, how men can throw their lives away gloriously in battle, fighting for an idea; or how they can commit secret and foul murder. Yet he was more afraid of that pulse of sound than of the face of Buck Daniels. He, also, was rising from his chair, and when Daniels stalked to the side door of the room and leaned there, the doctor followed.