Shefford respected his host's serene abstraction. Indeed, he was grateful for silence. Not for many nights had the past impinged so closely upon the present. The wound in his soul had not healed, and to speak of himself made it bleed anew. Memory was too poignant; the past was too close; he wanted to forget until he had toiled into the heart of this forbidding wilderness--until time had gone by and he dared to face his unquiet soul. Then he listened to the steadily rising roar of the wind. How strange and hollow! That wind was freighted with heavy sand, and he heard it sweep, sweep, sweep by in gusts, and then blow with dull, steady blast against the walls. The sound was provocative of thought. This moan and rush of wind was no dream--this presence of his in a night-enshrouded and sand-besieged house of the lonely desert was reality--this adventure was not one of fancy. True indeed, then, must be the wild, strange story that had led him hither. He was going on to seek, to strive, to find. Somewhere northward in the broken fastnesses lay hidden a valley walled in from the world. Would they be there, those lost fugitives whose story had thrilled him? After twelve years would she be alive, a child grown to womanhood in the solitude of a beautiful cañon? Incredible! Yet he believed his friend's story and he indeed knew how strange and tragic life was. He fancied he heard her voice on the sweeping wind. She called to him, haunted him. He admitted the improbability of her existence, but lost nothing of the persistent intangible hope that drove him. He believed himself a man stricken in soul, unworthy, through doubt of God, to minister to the people who had banished him. Perhaps a labor of Hercules, a mighty and perilous work of rescue, the saving of this lost and imprisoned girl, would help him in his trouble. She might be his salvation. Who could tell? Always as a boy and as a man he had fared forth to find the treasure at the foot of the rainbow. II. THE SAGI Next morning the Indian girl was gone and the tracks of her pony led north. Shefford's first thought was to wonder if he would overtake her on the trail; and this surprised him with the proof of how unconsciously his resolve to go on had formed. Presbrey made no further attempt to turn Shefford back. But he insisted on replenishing the pack, and that Shefford take weapons. Finally Shefford was persuaded to accept a revolver. The trader bade him good-by and stood in the door while Shefford led his horse down the slope toward the water-hole. Perhaps the trader believed he was watching the departure of a man who would never return. He was still standing at the door of the post when Shefford halted at the pool.