Marten, a powerfully built man, of commanding height and good physique, clean-shaven, though the habit was far from general in the West at that date, was evidently exerting himself to soothe and interest his pallid companion. His swarthy face was flushed, and its constant smile was effortless; for he had schooled himself to adapt the mood to the hour. As the personnel of the cavalcade changed with each headlong gallop or sudden halt, he nodded affably to the men, or bowed with some distinction to the women; for Marten knew, or pretended that he knew, every inhabitant of Bison. His wife knew them too, without any pretense; but she kept her eyes studiously lowered, and, if she spoke, used monosyllables, and those scarcely audible, for Marten had obviously to ask twice what she had said even during the fleeting seconds when the pair were visible to Power. Her features were composed almost to apathy; but the watcher from the cliff, who could read the slightest change of expression in a face as mobile to the passing mood as a mountain tarn to the breeze, felt that she was fulfilling a compact and holding her emotions in tense subjection. He hoped, he prayed, with frenzied craving of the most high gods, that she might be moved to lift her eyes to his aery; but the petition was denied, and the last memory vouchsafed of her was the sight of her gloved hands clasped on her lap and holding a few sprigs of white heather. Now, it was a refined malignity of Fate which revealed that fact just then, because heather does not grow in Colorado, and the girl had culled her simple little bouquet from a plant which Power had given her. Once, in Denver, he had rendered some slight service to an expatriated Scot, and, when a sister from Perth joined her brother, bringing with her a pot of Highland soil in which bloomed the shrub dear to every Scottish heart, Power was offered a cutting "for luck." Great was Nancy Willard's delight at the gift; for, like the majority of her sex, she yielded to pleasant superstition, and the fame of white heather as a mascot has spread far beyond the bounds of Great Britain. Power might well have cried aloud in his pain when he discovered that his lost love had thought of him at the moment she was leaving her old home. Perhaps he did utter some tortured plaint: he never knew, because of what happened the instant after Nancy and her spray of heather were reft from his straining vision. One-thumb Jake, who had loitered at the ranch for a farewell drink, rode up at a terrific pace, pulled his bronco on to its haunches alongside the coach, and by way of salute, fired three shots from a revolver as quickly as finger could press trigger.