The machine gathered headway rapidly, and soon was speeding at the rate of forty miles an hour.

The wind got under her planes and up in the air she rose like a mighty bird, and shot ahead.

All the men now became terrified.

Rushing aft they reached the deck, and as the Jove was ascending, they sprang to the ground one after another, and rolled over and over.

Captain Diavolo was left to his fate, yelling like a demon to be relieved of the awful electric current, for he did not know what it was.

Higher and higher mounted the airship upon the wind, and all Frank’s companions hastily got up, dressed and saw what had happened to the invaders.

Then they rushed into the pilot-room.

Just as they entered Captain Diavolo gave a strong pull at the handle of the drawer, and tore it off.

As the electric wire became detached the current ceased, and the burly rascal dropped the handle.

Turning round, he came face to face with Zamora!