"Yes, if the fact were generally circulated. But according to my mind they'll keep it quiet until after the armada gets off. No use alarming the others, though orders have gone out I presume to have every plane carefully examined. Still, that would only be ordinary caution; we never go up without doing such a thing."

"Tom, do you think there could be any possible connection between this work of a German spy, as it appears on the surface, and my news from Mr. Smedley, the lawyer?"

"It's possible—even probable, Jack. A whole lot depends on whether we learn of any other plane having been meddled with. One thing sure, it'll spur them to greater vigilance about watching things here. This isn't the first time there's been a suspicion of rank treachery. Planes have been known to be meddled with before now."

"I wouldn't put it past him!" muttered Jack sullenly.

"Meaning your cousin Randolph, I suppose," Tom added. "Nice opinion to have of a near relative, I must say. But then I'm inclined to agree with you. It may be only a queer coincidence, your getting such important news this afternoon, and some unknown party trying to bring about our downfall and death in this brazen way only a few hours afterwards."

"And using corrosive acid, too," spluttered the indignant Jack. "I've heard of ropes being partly cut, even wire stays or struts filed to weaken them; but this is the limit. Don't I wish they'd caught the skunk in the act!"

"He'd never have left this aviation camp alive," said Tom sternly. "Why, the boys would be so furious they'd be tempted to lynch him offhand."

"And I'd be glad to help pull the rope!" snapped Jack. "A more cowardly act couldn't be imagined than this. Air pilots take great enough chances, without being betrayed by spies or traitors."

"We'd better say nothing about it," Tom concluded. "I'm going to run over the entire machine on my own account."

"And I'll do the same, Tom; for a pilot can't be too sure of his mount, especially when there's such meanness afoot."