The three men dismounted. The ledge gave no trace of human occupancy and yet Porter and Jack nodded at each other.
"Here was his camp, all right. Water, and no one could come within a mile of him without his being seen."
"He's still covering his traces carefully," said Jack.
"Not so very," answered Porter. "He's banking a whole lot on our stupidity, but Miss Tuttle beat him to it with her scarf."
The three men treated the ledge to a microscopic examination but they found no trace of previous occupation until Billy knelt and put his nose against a black outcropping of stone in the wall. Then he gave a satisfied grunt.
"Come here, Jack, and take a sniff."
Jack knelt obediently and cried excitedly: "It smells of smoke, by Jove! Don't it, John, old scout!"
"They knew smoke wouldn't show against a black outcrop, but they didn't bank on my nose!" said Billy complacently. "Come ahead, boys."
A short distance from the spring they found a trail which led back up the mountain, and as dusk came on they followed its dizzy turns until darkness forced them to halt and wait until the moon rose. By its light they moved up into a piñon forest.
"Let's wait here until daylight," suggested Jack. "It's a good place for a camp."
"No, it's too near the ledge," objected Billy. "Of course we are working on faith mostly. I'm no Sherlock Holmes. We'll keep to the backbone of this range for a while. It's the wildest spot in New Mexico. Kut-le will avoid the railroad over by the next range."