Tisco, artlessly, turning away.

Though the secretary did not watch Hazelton's face, Don Luis did,
and saw the slight start of surprise and the flush that came to
the young engineer's face.

"You, too, have been walking then, Senor Hazelton?" inquired Don
Luis, pleasantly, though with an insistence that was not to be
denied.

Harry didn't know how to lie. He might have dodged the question,
but he was quick enough to see that evasion would make the matter
worse.

"Tom and I took a stroll last night," he admitted, indifferently.
"How far did we go, Tom?"

"Who can say?" replied Reade, lightly. "It was so dark, and the
way so unfamiliar that we were glad when we got home, I know."

"They have been prowling," muttered Don Luis, sharply, under his
breath. "I must have them watched."

"Are we going to the mine this morning, Don Luis?" Tom asked,
carelessly.

"Do you care to go, Senor Tomaso?"

"Why, that's just as you say, sir," Reade rejoined. "Of course,
we would like to get actively engaged at our work. In fact, it