“I’ve never climbed Red Hill myself, son,” said Big John. “But as for clearin’ out--we _cayn’t_! Not yet awhile.” Sid grinned delightedly. “How come?” he asked, all interest. “What think? Ef four men goes to chowin’ man’s food, in alligator-sized doses like you boys hev been doin’ for the last four days, how long d’ye suppose three skins of pemmican will last?” asked Big John sardonically. “We’re almost out of meat, boys. We’ll try Cerro Colorado to-morrow, an’ then, Red Mesa or no Red Mesa, we rolls our freight for them Hornaday mountains whar thar’s mountain sheep an’ antelope. Shoot or starve--that’s us, old-timer!” “Suits me!” caroled Sid. “We’ve got to stock up before we start back, eh? Well--what did we bring Ruler and Blaze along for, anyhow!” he demanded enthusiastically. Scotty was silent as they went back to camp. He was silent, too, and anxious all through the ride to Cerro Colorado next morning. Face to face with the reality, with these vast fields of scowling lava, with the dry and level plains of endless creosote bushes, with these parched and stunted bisangas, choyas, and saguarros, his dream shriveled and faded. A mine! Here, in all this five hundred square miles of barren lava! A railroad to it! How cross the grim ranges of Pinacate, looming up now not twenty miles away to the west? It all seemed so hopeless! It would take a far sterner and more determined man than he to push through such a project! But Sid sang happily as they rode toward Cerro Colorado. This wild, free land struck a response in the deepest notes in his being, the love and enjoyment of that freedom that every explorer, every pioneer, every adventurer feels to be his most precious birthright; for which he will sacrifice ease, comfort, wealth, civilization itself. New species of this marvelous desert life constantly claimed his attention. White trees, fluffy in foliage as cotton, appeared. “Smoke Trees,” Big John named them. A new bush, all frosty white, met them along the march, securing a roothold even in crevices between red and sterile lava chunks as large as a ragged rock boulder. He recognized the species as the Brittle Bush and would have tried breaking its twigs except for the formidable and glistening thorns with which it was armed. Then came a vast carpet of lowly little plants that seemed made of frosted silver and Big John drew rein. He inspected them closely and then scanned the neighboring craters and all the vast plain about him with keen eyes. “Antelope fodder, fellers!” he announced. “Whar ye see thet leetle plant, thar’ll be pronghorns. They love it better than grass.”