Both now pressed forward eagerly.
It seemed an interminable distance to the air-ship, but they kept on.
Meanwhile, a curious change had been going on in the atmosphere.
The sky was assuming a strange copper color, and to the west and south there was a long, livid line on the horizon.
The two adventurers were too intent upon the object before them to note this.
They kept on at full speed, and suddenly Pomp cried:
“Dar am some one on de deck, an’ dey am jes’ makin’ a signal to us.”
At that distance it looked very much like Barney.
This was the truth.
It was evident that the Celt had seen them. With renewed courage the two adventurers pressed on.