“Why should you be? Maybe Aunt Hep will go with us.”

“La sakes; I’ve been thanking the Lord ever since that my neck wasn’t broke and I’ll never tempt Providence that way again. You will spend the rest of the day with us?”

“No,” replied Dick; “I can’t even wait for dinner, though if I get back in time I shall be glad to have a meal with you.”


CHAPTER XXV.
“I’LL DO IT!”

HARVEY HAMILTON walked out to where his aeroplane was waiting, and under the eyes of Ann Harbor and her aunt set the propeller revolving, mounted his seat, called a cheery good-bye and sped away in the direction of Dawson. He had become so familiar with the section that there was no uncertainty in his course. He was not heading for the town, but veered slightly to one side, and when he caught sight of the workshop of Professor Milo Morgan, he aimed as straight for it as an arrow driven from a bow.

He was yet some distance off when he observed the man in front of his building, bending over his helicopter as if attending to some repair of the machinery. When the noise of the approaching biplane fell upon his ear, he straightened up, turned around and stared in amazement. He stood as rigid as a statue, never once removing his gaze from the biplane, which lightly touched the ground, scooted a few rods and came to a standstill less than fifty feet from where he was scrutinizing it, and the young aviator.

Harvey knew the critical moment had come. While stepping to the ground, he drew his revolver from his hip pocket, examined it for a moment and then shoved it back in place. This was a little by-play meant to warn the Professor that his visitor owned a deadly weapon and held it at instant command. It is to be noted that the man carried nothing of the kind. His skill as a chemist gave him more frightful agents, though he could not have called them into play, as the circumstances stood, before the youth would anticipate him.

Harvey faced him with a smile and walked forward.