The voice had been cheerful then; it was snarling now; but the tones were identical. Then, going a step farther, Frances realized, from the talk she had just heard, that this Pete was the man who had tried to get over the roof of the ranch-house. One and the same man--tramp and robber. Ratty had shown Pete the way. Ratty was a traitor. He might easily have seen the broken slate on the roof and pointed it out to the mysterious Pete. The latter had been an orderly in the Bylittle Soldiers' Home, and had heard the story of the Spanish treasure chest, when old Mr. Lonergan was rambling about it to the chaplain. The fellow's greed had started him upon the quest of the treasure so long in Captain Rugley's care. Perhaps he had known Ratty M'Gill before; it seemed so. And yet, Ratty did not seem entirely in the confidence of the robber. Nevertheless, Ratty must leave the ranch. Frances was determined upon this. She could not tell her father about him; and she shrank from revealing the puncher's villainy to Silent Sam Harding. Indeed, she was afraid of what Sam and the other boys on the ranch might do to punish Ratty M'Gill. The Bar-T punchers might be rather rough with a fellow like Ratty. Frances believed the boys on the Bar-T were loyal to her father and herself. Ratty's defection hurt her as much as it surprised her. She had never thought him more than reckless; but it seemed he had developed more despicable characteristics. These and similar thoughts disturbed Frances' mind as she made her way back to the ranch-house. She found her father very weak, but once more quite lucid. Ming glided away at her approach and Frances sat down to hold the old ranchman's hand and tell him inconsequential things regarding the work on the ranges, and the gossip of the bunk-house. All the time the girl's heart hungered to nurse him herself, day and night, instead of depending upon the aid of a shuffle-footed Chinaman. The mothering instinct was just as strong in her nature as in most girls of her age. But she knew her duty lay elsewhere. Before this time Captain Rugley had never entirely given over the reins of government into the hands of Silent Sam. He had kept in touch with ranch affairs, delegating some duties to Frances, others to Sam or to the underforeman. Now the girl had to be much more than the intermediary between the old ranchman and his employees. The doctor had impressed her with the rule that his patient was not to be worried by business matters. Many things she had to do "off her own bat," as Sam Harding expressed it. The matter of Ratty M'Gill's discharge must be one of these things, Frances saw plainly. She waited now for the doctor's appearance with much anxiety of mind. The Captain was quiet when the physician came; but the effect of his delirium of the night before was plain to the medical eye.