Presently the wounded man came to. His eyes opened, and he stared up into a steel mask of a face, in which two level black eyes bored into his. He remembered that face—remembered it all too well. He trembled, cowered away.

"No!" he gasped, as if he had seen a ghost. "No—no!"

"Yes, I'm the man," Holmes told him firmly, menacingly. "The same one you tried to ambush." He paused a moment, then said: "Do you want to live?"

It was a simple question, frightening in its simplicity.

"Because if you don't answer my questions, I'm going to let you lie here," Phil went on coldly. "And that would probably mean your death. If you do answer, I'll fix you up so you can have a chance."

The Mexican nodded eagerly. "I talk," he said.

"Good," said Phil. "Then tell me who built that machine?"

"Señor Quade. Señor James Quade."

"Quade!" Phil had heard the name before. "Of course!" he said. "Guinness's old partner!"

"I not know," the Mexican answered. "He hire me with much money. He buy thees machine inside, and we put him together. But he could no make him work—it take too long. We watch, hear old man go down to-night, and—"