The Mexican shook his head negatively. Then he pointed to the burning building and waved his arms wildly.

"Steady up!" Bud commanded. "Take it easy!"

The man took a deep breath and regained control of himself. But his gestures were still inexplainable. After a minute of vain gesticulating the Kid suddenly exclaimed:

"I think I get it! Mex, listen here: Did you set that fire?"

A vigorous nod of the head. The boys looked at each other in surprise.

"What for?"

The Mexican pointed to himself, then held up two fingers. Then he pointed to the house, and shook his fist.

"Be means his brother!" the Kid said. "What about him, Mex? Did Delton get hold of him?"

Another nod, and more furious gestures.

"I see!" cried the Kid. "He means Delton put his brother up to some dirty work. That right, Mex?"