"A thousand pardons, caballeros!" he murmured. "Of course, you are quite right. It had not occurred to me in that light before. True, the report was intended only for my own pleasure in later years, but that does not alter the nice point of honor."

Tom Reade was deceived by Don Luis's manner. He did not suspect that, at this very instant, the Mexican was consumed with demoniacal rage.

"I shall not be patient another time," muttered Don Luis, between his teeth and under his breath. Yet aloud he said:

"We have had too much of business to-day. We are tiring ourselves. Until dinner time let us go outside and be gentlemen. Business for to-morrow or next week. And my dear daughter. Brute! I have been forgetting her."

Senorita Francesca, a darkly beautiful girl of eighteen, shy and retiring from the convent schooling that had ended but lately, soon came downstairs at her father's summons. Dr. Tisco bowed low before the charming girl. Tom and Harry were presented, and tried to make themselves agreeable to the young Mexican girl. Senorita Francesca's shyness, however, made this somewhat difficult, so the young engineers felt inwardly grateful when Dr. Tisco strolled down the porch with her.

Dinner proved to be a somewhat formal affair. Yet, as soon as the meal was finished Senorita Francesca was escorted from the dining room by her father and returned to her room.

"What did you think of the young lady, Tom?" Harry asked his chum when he could do so privately.

"A fine-looking girl," Reade answered briefly. "But I fear she would be highly offended if she knew that, all through dinner, my every thought was on the mine and the problems that we shall find there."

"I want to talk with you about that mine, and about some impressions that I have formed here," murmured Hazelton.

"Then another time, my dear fellow, for here comes Don Luis, and
I see Dr. Tisco returning from the garden."