r another hour or two, the ship still kept
on its flight, all breathed easier.

"Well, we've been to the north pole," remarked Jack, after a long pause.
"That's something very few can say."

"Yes, I think we can safely assert that we have accomplished what we set
out to do," remarked the professor. "True, we did not land on the exact
spot, and I am inclined to believe it would be impossible, because of
the whirlwind of the electric currents. But we certainly were at the
exact north, as the deflecting needle showed."

"I wonder if the south pole is like this?" asked Mark.

"I do not know," returned Amos Henderson with a smile. "I hope the south
pole is a little nicer. We might go and see, some day. Would you boys
like to make the trip?"

"You bet!" exclaimed Jack fervently, speaking for himself and Mark.

The _Monarch_ sped on her way. Every hour brought her nearer to her
starting point. When it became evident that the machinery was now in
good working order and not liable to a breakdown, the professor ordered
a meal gotten ready, since all were hungry.

With thankful hearts they sat down to a spread of the best the patent
foods afforded, and ate heartily. Then, being worn out with fatigue, the
professor advised all to take to their bunks and get some sleep. He said
he would steer the ship for a while, to be relieved by Washington and
Jack in turn.

Regular watches were established before the adventurers sought their
bunks, and then, while the craft shot southward, quiet reigned aboard.

No further mishaps occurred. For some days the _Monarch_ was kept on her
course. Every hour it grew warmer until the fur garments were
discarded, and at length the windows were opened and the fresh breezes
blew inside the cabins. The temperate zone had been reached.

Over green meadows, woods, hills and valleys the airship flew; across
wide bays, great rivers and large lakes. Now it was high in the air,
above the clouds, and, again, close to the earth, as the captain
directed.

At last, just at dusk one summer afternoon, a little less than a month
from the time they had left, the inventor stopped the propeller.

"We are right above my old cabin," he said. "Now we are going to land.
This ends the voyage to the north pole, and we are back safe and sound."

The ship settled down, about a hundred feet from the balloon shed, which
remained the same as when the adventurers had left it. No one was in
sight, and the travelers step