"I see," said Dave calmly, but under the surface greatly stirred up.
"It's the Drifter!"
"Yes."
"What are you going to do?"
"Come," spoke Dave simply, and sprang into his seat in the Machine.
Hiram hastily collected their few belongings scattered about the spot. He bundled them into the accommodation basket, and was in his place almost as soon as Dave.
The eyes of both of the young aviators were fixed on a rapidly approaching object—an airship. Dave did not have to glance at its construction more than once to know definitely that it was the stolen Drifter.
Whoever was at the levers, Jerry or his father, thoroughly understood his business, Dave saw that. The aero-hydroplane came rather abruptly into view over a wooded hill top, and was rapidly approaching them.
"You see, I was right," said Hiram hastily. "That half breed was a spy, at least to that crowd. He has directed them here."
"All ready," ordered Dave, in a set, sturdy tone, and the self starter began to work.