For an hour the mocking lilac mountains hung in the air and then paled in the intense light. The day was soundless and windless, and the heat- waves rose from the desert like smoke. For Hare the realities were the baked clay flats, where Silvermane broke through at every step; the beds of alkali, which sent aloft clouds of powdered dust; the deep gullies full of round bowlders; thickets of mesquite and prickly thorn which tore at his legs; the weary detour to head the canyons; the climb to get between two bridging mesas; and always the haunting presence of the sad- eyed dog. His unrealities were the shimmering sheets of water in every low place; the baseless mountains floating in the air; the green slopes rising close at hand; beautiful buttes of dark blue riding the open sand, like monstrous barks at sea; the changing outlines of desert shapes in pink haze and veils of purple and white lustre--all illusions, all mysterious tricks of the mirage. In the heat of midday Hare yielded to its influence and reined in his horse under a slate-bank where there was shade. His face was swollen and peeling, and his lips had begun to dry and crack and taste of alkali. Then Wolf pattered on; Silvermane kept at his heels; Hare dozed in the saddle. His eyes burned in their sockets from the glare, and it was a relief to shut out the barren reaches. So the afternoon waned. Silvermane stumbled, jolting Hare out of his stupid lethargy. Before him spread a great field of bowlders with not a slope or a ridge or a mesa or an escarpment. Not even a tip of a spur rose in the background. He rubbed his sore eyes. Was this another illusion? When Silvermane started onward Hare thought of the Navajos' custom to trust horse and dog in such an emergency. They were desert-bred; beyond human understanding were their sight and scent. He was at the mercy now of Wolf's instinct and Silvermane's endurance. Resignation brought him a certain calmness of soul, cold as the touch of an icy hand on fevered cheek. He remembered the desert secret in Mescal's eyes; he was about to solve it. He remembered August Naab's words: “It's a man's deed!” If so, he had achieved the spirit of it, if not the letter. He remembered Eschtah's tribute to the wilderness of painted wastes: “There is the grave of the Navajo, and no one knows the trail to the place of his sleep!” He remembered the something evermore about to be, the unknown always subtly calling; now it was revealed in the stone-fettering grip of the desert. It had opened wide to him, bright with its face of danger, beautiful with its painted windows, inscrutable with its alluring call. Bidding him enter, it had closed behind him; now he looked upon it in its iron order, its strange ruins racked by fire, its inevitable remorselessness. XV. DESERT NIGHT