Malcolm shook his head. “Not that,” he said dismally. “I wish he had deserted of his own free will. Anything would be better than that which has happened. I’m terribly sorry now that I brought you girls with me into town, but, of course, you must know the truth. Instead of being untrustworthy, Tom may have risked his life to prove his worthiness of a trust. Harry says that his father had five hundred very valuable Merinos coming by rail and they wanted to send their best man to meet them and drive the sheep in from the station, so they selected Tom, and as there was need of two drivers for so large a flock, little Francisco Quintano Mendoza accompanied him. Harry expected that about three days would be required to drive the flock through the mountain pass, stopping to graze and rest in the grassy valleys, but four and then five days passed and Tom did not return. “Harry had not accompanied them because his father was away at the time and his mother alone on the ranch, but, at last he became so anxious that his mother urged him to ride to Red Riverton. There he found that the Merinos had arrived safely the week before and that Tom and the small Mexican boy had driven them away about noon on the day of their arrival, and that they had taken the beaten track toward the mountains where they had been lost to sight when they entered the Red Rock Pass. “Harry then visited the sheriff and together with several men, they rode to the pass, but although they could see many hoof-prints in the soft mud where a spring kept the ground ever moist, they could not trace them on the desert where the winds often changed the surface of the sand. “The sheriff and his men seemed to believe that Tom has turned rustler and that he had spirited away the valuable Merinos for his own gain, but to this suggestion Harry would not listen. He knew Tom to be absolutely trustworthy, he declared, but since he had no better theory to offer, the men left him still unconvinced. “The father has now returned and at his suggestion a large party of men are to start on a wide circling round-up of the entire sheep raising section of the state, hoping in that way to come upon some evidence that may at least solve the mystery if it does not enable them to recover the lost sheep. They need more assistance, Harry tells me, and so I promised to go to him as soon as I possibly can.” “Oh dear! Oh dear!” Virg exclaimed, unshed tears in her eyes, “I shall never forgive myself for having sent Tom north if harm has befallen him.” “My theory,” Malcolm continued, “is that a band of thieves, rustlers, knew that the very valuable shipment of Merinos was due, and that they were lying in wait in the pass for Tom and in some manner they have spirited away both the flock and the drivers. I believe that this will be proved true when we round up that entire section.”