Tom did not suspect the telephone trick. In fact, the young chief
engineer had as yet no deep suspicion that Don Luis was a rogue
at heart.

"The report is excellent," called Don Luis, gayly, as he came
back. "In that tunnel where we saw the blasting done the blank
rock has been penetrated, and the rich ore is coming again."

"How I'd like to see it!" Tom glowed.

"Why?" asked Don Luis, quickly.

"Because I am anxious to know all the secrets, all the indications,
of fine old _El Sombrero_."

"It _is_ a fine mine, isn't it, Senor Tomaso?" demanded Don Luis,
enthusiastically.

"From all indications it ought to be," Reade answered. "Yet it's
a new formation of rock to me--this sandwich formation as I might
call it, with the alternate layers of rich ore and blank stuff."

"I have been drawing up a report on the mine," murmured Montez,
opening a drawer in his desk. "This report describes the operations
and the profits so far. Glance through it with me."

The report had been written in English, by either Dr. Tisco or
his employer.