"What luck!"





CHAPTER XIII

HIRAM DOBBS AND THE BIPLANE


Dave walked straight along the fence. By the shortest route
possible he reached the gateway entrance to the factory yard.

The tramp had put nimbly in the opposite direction. He was headed
for the nearest business street, where he could spend some of the
money that he had earned so easily.

The young aviator was very much excited. He had made certain
discoveries that had amazed him. He could not help but mentally
rejoice over the strange fortune that had come from his stray
meeting with the tramp.

"It's a clew--a sure clew," said Dave to himself. "Now to move just
right in this affair and make no mistake."

The youth crossed the grounds of the plant and again entered the
office building. He did not wait to announce himself, but, as he
reached the door of the manager's room and found it closed, he
tapped briskly.