"What did I say?" whispered Dr. Tisco.

"Wait!" responded Don Luis, with a shrug of his shoulders.

Well-nigh frothing at the mouth, Pedro Gato leaped to his feet. All was red now before his eyes. He rushed forward bellowing like a bull, intent on crushing the young American who had dared to treat him thus.

Tom's left fist drove into the fellow's unguarded face. His right followed, and Gato, big as he was, staggered back. Tom's right foot performed a trip that sent the big Mexican bully to earth again.

"Now get up, Gato, like a man of intelligence, and behave yourself," advised Reade coolly. "Just because we have had a bad introduction is no reason why we should continue enemies. You treat me with proper respect and I'll do as much for you."

But Gato snarled like a wild beast. He was not armed. With every man in these Bonista mountains afraid of him, Gato had never felt the need of carrying weapons. But now he plunged to the doorway of the shaft house, then came bounding back, flourishing a knife that he had snatched from one of the peons.

"Back! Back, Gato!" shouted Dr. Tisco, rushing from the office building.

To the secretary Gato paid no heed. He was close to Tom now, circling cautiously around the young engineer. Harry, though not at all minded to bolt, had stepped back far enough to give Reade elbow room.

"Stop, Gato!" shouted Don Luis. "It is I who command it—I, Don
Luis. Throw your knife on the ground."

Gato snarled, but he was cowed. The brutal manager held his employer in awe. He was about to cast his weapon down when Tom Reade interposed.