"Oh, my! then you believe—," he began when Frank interrupted him by saying:
"I don't believe anything; but the circumstance seemed a little suspicious to me, that's all. It's possible, and that's the extent of what flashed into my mind. But we have no proof; and I'd hate to think that Mr. Marsh could be guilty of such a nasty thing as trying to injure us."
"Shall we make a start now?" asked Andy, who seemed more or less in a daze.
"I suppose we might as well. Look at the eagles dipping lower and lower. They've got some young ones in the nest, and if we went closer there'd be a circus going on pretty quick. But we're not looking for trouble today," Frank remarked.
"No need to," replied the other, instantly; "because it's hunting us."
They were very careful to make sure that no loose stones barred the way; for as the plateau was very short they must sail off into the air almost immediately on starting the engine; and even a small turn at such a critical moment was apt to cause the biplane to swerve, and bring about a catastrophe.
But the start was successfully accomplished. Frank always paid so much attention to little things that he was not very apt to be caught napping.
"Straight home?" asked Andy, once they were afloat, and heading down from the dizzy height.
"Yes," replied his cousin. "I'm curious to hear what our friend Mr. Marsh could have had to say to Larry; and how the boy carried out his job of keeping strangers from nosing around inside the shop."
"Just as well that we left when we did," remarked Andy; "for over in the southwest I noticed some clouds that may bring a lot of wind along, and weather that no self-respecting aeroplane has any business to be out in."