With this warning he turned and left them. Josephine took a general survey of the place. At last she turned a pale face to Ethel, for she had noticed the natural barriers of rock all about them. “This place is twice as hard to get at as the one where I was held a prisoner before,” she said sadly. It was beginning to get dark and the girls were completely tired out. They went over to the little cabin on the flat table rock and throwing themselves down tried to sleep. Percy was to make his quarters with the men in another cabin a hundred yards across the flat rock from the girls’ cabin, and they were surprised to see how well he seemed to bear up under his present troubles. Josephine arranged to have one of them keep watch while the other slept, and in this way they passed the long night. When morning came they were full of aches and pains as neither had slept well during the night and the bunks were hard. Both girls had finally agreed that it would be best to grant Ricker’s demands, and write the warning letter to Mason. The men were astir over in their camp and the smell of coffee boiling came to them with an appetizing flavor. A stream flowed close by and Josephine went over to it and started to bathe her swollen eyes. She was startled by a strange humming noise over her head and looked up in alarm. “Oh, look! Ethel!” she screamed, “an airplane!” Like a huge bird it soared above them, then the motor stopped and the airplane began to come down gracefully in long sweeping spirals. The girls were waving their handkerchiefs at the aviator when Ricker came rushing out of the men’s cabin and fired his revolver at him. Instantly the motor started to hum and the airplane began to lift. Soon it was a mere speck in the sky. Josephine clasped Ethel in her arms and her eyes were swimming with tears. “I’ll bet my life that was Roy Purvis, the aviator,” Josephine said, her spirits drooping at their slim chance of being rescued. “Sir Jack told me that he expected an aviator to visit him from New York, and I believe that was his airplane and he has lost his way in the mountains!” CHAPTER XIX THE ROUND-UP When Mason arrived at the Ricker ranch in his racer there was an ominous silence about the place that confirmed his worst fears. He knew the girls must have arrived at the ranch ahead of him, but seeing no signs of life about the place he left his motor running and sprinted for the house. Just as he threw the door open he heard a piercing scream followed by a revolver shot that appeared to come from the depths of the cellar. He drew his revolver and fired an answering shot. He dashed madly down the stairs leading to the cellar where he found himself in pitch darkness. Sounds of a struggle reached his ears as he blindly felt his way along the cellar. He cursed his stupidity for not thinking to have brought along a light of some kind. The sounds of a struggle had abruptly ceased and a deathly silence prevailed. Too late!