"You leave me like thees?" the Mexican asked.
"Yes," Phil said, and started for the door.
"But what you going to do?"
Phil smiled grimly as he flung an answer back over his shoulder.
"Me?—I'm going to fix the wiring on those disintegrators in your friend Quade's borer. Then I'm starting down after him." He stopped and turned before he closed the door. "And if I don't get back—well, it's just too bad for you!"
nd so, a little later, once more the hushed desert night was cleft by a furious bellow of sound. It came, this time, from a narrow cañon. The steep sides threw the roar back and back again, and the echoes swelled to an earth-shaking blast of sound. The oblong hut from which it came rocked and almost fell; then, as the noise began to lessen, teetered on its foundations and half-slipped into the ragged hole that had been bored inside.
The descent was a nightmare that Holmes would never forget. Quade's machine was much cruder and less efficient than the sphere David Guinness had designed. Its protecting insulation proved quite inadequate, and the heat rapidly grew terrific as the borer dug down. Phil became faint, stifled, and his body oozed streams of sweat. And the descent was also bumpy and uneven; often he was forced to leave the controls and work on the mechanism of the disintegrators when they faltered and threatened to stop. But in spite of everything the needle on the depth gauge gradually swung over to three thousand, and four, and five....
After the first mile Holmes improvised a way to change the air more rapidly, and it grew a little cooler. He watched the story the depth gauge told with narrowed eyes, and, as it reached three miles, inspected his rifle. At three and a half miles he stopped the borer, thinking to try to hear the noise made by the other, but so paralyzed were his ear-drums from the terrific thunder beneath, it seemed hardly any quieter when it ceased.