"Yet, if you are anxious to know how the blank rock is coming I can telephone the mine and get all the information within five minutes.

That will be an excellent idea.

I will do it now, in fact." Crossing the room, Don Luis rang and called for the mine.
"Our young engineers are very sharp--especially Senor Reade," murmured Dr.Tisco to himself, while the telephone conversation was going on in Spanish.

"Yet I wonder if our young engineer does not half suspect that Don Luis has no man at the other end of the wire ?" 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.