The sudden entrant upon a quarrel between others is invariably at a disadvantage. Usually he is unaware of the cause of difference and generally he has no idea of the stage of development of the affair that has been reached. Newbold suffered from this lack of knowledge and to these disadvantages were added others. For instance, he had not the faintest idea as to who or what was the stranger. The room was not very light in the day time, Armstrong happened to be standing with his back to it at some distance from the window by the side of which Enid stood. Six years naturally and inevitably make some difference in a man's appearance and it is not to be wondered that at first Newbold did not recognize the man before him as the original of the face in his wife's locket, although he had studied that face over and over again. A nearer scrutiny, a longer study would have enlightened him of course, but for the present he saw nothing but a stranger visibly perturbed on one side and the woman he loved apparently fiercely resentful, sternly indignant, confronting the other with an upraised hand. The man, whoever he was, had affronted her, had aroused her indignation, perhaps had insulted her, that was plain. He went swiftly to her side, he interposed himself between her and the man. "Enid," he asked, and his easy use of the name was a revelation and an illumination to Armstrong, "who is this man, what has he done?" It was Armstrong who replied. If Newbold were in the dark, not so he; although they had never spoken, he had seen Newbold. He recognized him instantly, indeed recognized or not the newcomer could be no other than he. There was doubtless no other man in the mountains. He had expected to find him when he approached the hut and was ready for him. To the fire of his ancient hatred and jealousy was added a new fuel that increased its heat and flame. This man had come between Armstrong and the woman he loved before and had got away unscathed, evidently he had come between him and this new woman he loved. Well, he should be made to suffer for it this time and by Armstrong's own hands. The instant Newbold had entered the room Armstrong had thirsted to leap upon him and he meant to do it. One or the other of them, he swore in his heart, should never leave that room alive. But Newbold should have his chance. Armstrong was as brave, as fearless, as intrepid, as any man on earth. There was much that was admirable in his character; he would not take any man at a disadvantage in an encounter such as he proposed. He would not hesitate to rob a man of his wife if he could and he would not shrink from any deceit necessary to gain his purpose with a woman, for good or evil, but he had his own ideas of honor, he would not shoot an enemy in the back for instance.