Hussy and his companion, the latter saying nothing, were hustled off to one of the shops and locked in a steel enameling oven, where various parts of machinery were baked to give them a high polish. There was no fire under the oven when the prisoners were put in, of course, and the steel cage made a most effective jail.

“In the morning you’ll be locked in regular cells,” Tom said.

“You don’t dare hold us!” stormed Hussy.

“You’ve got another guess coming,” Tom chuckled. Then, when a guard had been posted near the prisoners, the young inventor asked Koku and Eradicate what had happened.

It developed that the two who were on guard had heard a disturbance shortly after midnight, and, investigating, had seen Hussy and his companion sneaking into the hangar. At once the colored man and the giant gave the alarm and rushed to capture the intruders, the end of the affair coming about when Tom and Ned joined the party.

“What was their game?” asked Ned, when he and Tom had made sure the Air Monarch had not been tampered with.

“Well, they couldn’t hope to steal any of my patent ideas in time to add them to their machine,” decided Tom. “There isn’t opportunity for that, with the start of the race almost here. I think they were trying to disable my machine so I couldn’t start. Kilborn and his bunch know I’m the most dangerous rival in this globe-circling race, and with me out of the way they stand a good chance to win. They wanted to cripple the Air Monarch, I’m sure.”

“But they didn’t!” echoed Ned.

“No, they didn’t,” echoed Tom, “thanks to Rad and Koku.”

Additional guards were placed about the hangar for the remainder of the night, but there was no further disturbance and early in the morning Tom had the two prisoners, in spite of their strenuous objections, taken to the Shopton jail where they were held in default of heavy bail on a charge of breaking and entering with intent to steal. They had broken a lock on the big gate to get in, but had been detected in time.