Frank was in the engine-room when he heard the whistle of alarm.
“Quick, then!” cried Frank. “Pomp, you stay with the airship.”
Barney and Spencer grabbed their rifles and followed Frank. Soon they had reached the spot where the professor had been seized by the Esquimaux.
Their tracks were seen and understood at once by Frank.
All search was of no avail. It was known that the professor was in the hands of the Esquimaux and that was all.
Back to the airship the three men went and to work.
Meanwhile the professor was having some thrilling experiences.
As the party tramped on the professor could not help wondering what his fate was to be.
He was not left long in doubt.
Suddenly the party came out of the fir forest and were in sight of a long, level plain extending down to the sea.