Dave now related to the manager all that he had held back during his first visit to the great plant.
"I say, Dashaway, that's simply wonderful," was Mr. Randolph's enthusiastic comment. "Anybody with the genius to gather up all those clews cannot fail to work out this entire case. We shall soon receive some great reports from you."
"I hope so," said Dave.
"Now then, you and your friend go over to the aerodrome and see which one of our machines there suits you best."
It was after Dave and Hiram had spent the most fascinating half hour of their lives viewing the wonders of mechanism on display, that the manager rejoined them. It was then, too, that Dave reported to him with the words:
"That is the machine I want, Mr. Randolph."
As Dave spoke he pointed to a monoplane of which he had made a close inspection for over ten minutes. The manager burst out into a hearty laugh.
"Well, well!" he cried, clapping Dave on the shoulder in an approving way, "I must say you are certainly a grand judge of monoplanes."
"How is that?" asked Dave.
"You have picked out the best machine in the place."