“You think your device will work?” he asked, regarding Jack keenly.
“I’m sure of it. In fact, we have buoyancy to spare. On paper——”
“Paper and practice are different things, my boy.”
“I know, sir, but——”
“You see, there are human lives at stake out there. It’s worth risking,” broke in Tom, unable to keep silence any longer. “Can’t we go?”
Mr. Chadwick considered an instant.
“Let me take a look at your ‘Wondership,’ as you call it,” he said.
With what rapidity Jack exhibited the craft and showed off her good points may be imagined. While they were thus engaged there came the sound of another gun. Then Mr. Chadwick spoke.
“Is everything ready?”
“Down to the last nut on the ultimate bolt,” declared Jack.