The next morning he was early in the saddle. The sky was blue and clear, the air full of the fresh odor of earth and clover and wild flowers. The swallows were making a jubilant twitter, the larks singing on the edge of the prairie--the glorious prairie, which the giants of the unflooded world had cleared off and leveled for the dwelling-place of Liberty. In his own way he enjoyed the scene; but he could not, as he usually did, let the peace of it sink into his heart. He had suddenly become aware that he had an unpleasant duty to perform, and to shirk a duty was a thing impossible to him. Until he had obeyed the voice of Conscience, all other voices would fail to arrest his interest or attention. He rode on at a steady pace, keeping the track very easily, and thinking of Lulu in a persistent way that was annoying to him. Hitherto he had given her very little thought. Half reluctantly he had taken her into his household when she was four years of age, and she had grown up there with almost as little care as the vines which year by year clambered higher over the piazzas. As for her beauty he had thought no more of it than he did of the beauty of the magnolias which sheltered his doorstep. Mrs. Lorimer had loved her niece, and he had not interfered with the affection. They were both Yturris; it was natural that they should understand one another. But his son was of a different race, and the inheritor of his own traditions and prejudices. A Scot from his own countryside had recently settled in the neighborhood, and at the Sabbath gathering he had seen and approved his daughter. To marry his son David to Jessie Kennedy appeared to him a most desirable thing, and he had considered its advantages until he could not bear to relinquish the idea. But when both fathers had settled the matter, David had met the question squarely, and declared he would marry no woman but his cousin Lulu. It was on this subject father and son had quarrelled and parted; but for all that, James Lorimer could not see his only son taking a high road to ruin, and not make an effort to save him. At sundown he rested a little, but the trail was so fresh he determined to ride on. He might reach David while they were camping, and then he could talk matters over with more ease and freedom. Near midnight the great white Texas moon flooded everything with a light wondrously soft, but clear as day, and he easily found Whaley's camp--a ten-acre patch of grass on the summit of some low hills.