Some feeling of unreality in his own experiences must have crept into his mind; unconsciously he had been questioning his own sanity. Now, at sight of the sandy waste where he and Rawson had labored, with the dark slopes of desolate craters looming ahead and a blot of burned wreckage directly below to mark the site of their camp, the horrible reality of it gripped him again. He could not speak at first. The air of the five-thousand level was not uncomfortably warm, but Smithy was feeling again the baking heat of that desert land; again he was with Rawson in the volcanic crater; Dean was calling to him, warning him.... A sharp question from Culver was repeated twice before Smithy could reply. He side-slipped in above the crater's ragged rim, heedless of down-drafts--the power of the DeGrosse motor would pull them out of anything in a ten-thousand-foot vertical climb if need arose. Smithy was pointing toward a confusion of shining black rock. "Over there," he told Culver. Then he was shouting into the telephone transmitter. "It's open," he said. "That's where Dean went down--and there they are! Look, man, there--there!" CHAPTER XIV _Emergency Order_ The throat of the old volcano was a pit of blackness in the midst of gray ash and the red-yellow of cinders. Beside it were other flecks of color: red, moving bodies; metal, that twinkled brightly under the desert sun--and in an instant they were gone. Nor did Smithy, throwing the thundering plane close over that place, know how near he had passed to sudden, invisible death. Rugged pinnacles of rock were ahead. The plane under Smithy's hands vaulted over them and roared on above the desert. "Did you see them?" Smithy was shouting. The man in the forward cockpit turned to face his pilot. "I am apologizing, Smith, for all the things I have been thinking and haven't said. We've got a job on our hands. Now let's find that fool sheriff who thinks he's hunting for drunken Indians. We must warn him." Smithy wondered at the wisps of blue smoke still rising from the ruins of Seven Palms as he drove in above it. It seemed years since he had left the Basin, yet the wreckage of this little town, only five miles outside, still smoldered. Colonel Culver was shouting to him. "East," he said. "Swing east. There's fighting over there." Then, in his usual cool tone: "I'll take the ship, Smith. Give then a burst or two from up here--perhaps the sheriff can use a little help." Across the yellow sand ran a desert road. Ten miles away black smoke clouds were lifting. Smithy knew there had been a little settlement there. A dozen houses, perhaps, and a gasoline station. At half that distance the clear sunlight showed moving objects on the sand: automobiles, smaller dots that were running them. They came suddenly to sharp visibility as the plane drew near. Tiny bursts of white meant rifle fire.