“Yes,” growled one of his fellows. “It wouldn’t take us long to make a sieve of that contrivance.”

“I resent this outrage!” cried the Frenchman, hotly. “We are under international protection. Our mission is in the interests of science. If you interfere with us, you will rouse the entire community. It will be the worse for you.”

“Hear him, boys,” rallied the outlaw leader. “Say, stranger, who’s going to tell what we did or didn’t do to you, hey?”

The speaker grinned in a cold-blooded way that made Hiram Dobbs shiver.

“Say, Mr. King,” he whispered hoarsely, “shoot them.”

“One gun against twenty wouldn’t count for much,” responded the airman, with a shake of his head.

“I will pay no ransom, I will give you not one cent of blackmail,” declared the doughty Frenchman, thoroughly indignant.

“All right, then we will ransack your old gas bag and take what we want,” boasted the outlaw.

“I warn you,” cried the professor. “The airship is one mass of devices you do not understand. You may find trouble.”

“What do you bother with him for?” cried the man beside the last speaker. “We’ll cover the rest of the crowd. You make him take you over the machine and get what’s lying around loose.”