“For the sake of your safety,” Bob whispered, “take off, just as you planned—but only go to the cornfield—set down as soon as you can—and then—look for—crossed wires!”

In a flash he was beyond questioning!

CHAPTER XXXI
“ONE MORE PROBLEM”

Bob did not delay a moment after he delivered his solemn warning to Mr. Tredway.

As quickly as he could he located the plant manager.

“Barney,” he said earnestly, “don’t stay here tonight! Come home with us. Stay with the Sky Squad.”

“In the name of Sam Hill—why?”

“You forgot where you were, didn’t you, when you spoke about the——” he lowered his voice, glanced around, spoke carefully, “—the ex-pilot as the one who had a motive for injuring Mr. Tredway?”

“Well—I guess I was thinking pretty much of what I was saying.”

“I know you were.”