The day came when Tom Reade and Harry Hazelton were able to apply the final and most severe test to the roadbed that ran across the Man-killer quicksand. Their work was finished, and finished splendidly, adding another great triumph to their record as young engineers.

“These hot countries are fine, for a while,” grunted Harry Hazelton, as the young engineers left Paloma in a special Pullman car that General Manager Ellsworth had sent for their use.

“They are fine, in fact; but one gets tired of working on a blistering desert. I hope our next long undertaking will be in a country where ice grows as one of the natural fruits.”

“Greenland, for instance?” smiled Tom Reade.

“Alaska, at all events,” responded Harry hopefully.

“Do you know where I'm figuring on making my next stop?” Tom inquired.

“Where?”

“In good old Gridley, the town where we were born, boy! I'm fairly aching for a sight of the good old town. Will you go with me?”

“For a few weeks, yes,” Harry agreed. “But after that little rest?”

“After our visit to the good old home town,” Tom Reade replied, “we'll go anywhere on earth where a good, big chance for engineering offers. Harry, we've yet nearly all of our work ahead of us to do if we're ever going to be real, Class A engineers!”