“I wonder how long they expect this expedition to take,” said Herb. The idea of exploring the arctic with radio as a companion was a fascinating one to him and at that moment he would have made one of Amundsen’s hardy crew, if such a thing were possible, with the greatest joy.

“They expect it will take them five years, maybe six.” It was Bob who answered the question. “Their idea is to travel as far as possible north before the ice gets thick. Then when the floes close in about them they will drift with the ice over the pole—or, at least, that’s what they hope to do.”

“What gets me,” said Jimmy plaintively, “is how they are going to know when they get to the pole anyway.”

Herb made a pass at him which the fat boy nimbly avoided.

“Why, you poor fish,” said the former witheringly, “you sure will be a full-sized nut if you ever live to grow up. I suppose if you got to the North Pole you’d expect to see a clothes pole with the clothes line wrapped around it, ready for use.”

[CHAPTER XXI—A SUDDEN INSPIRATION]

Unconsciously their feet had carried the radio boys in the direction of the radio station and now they were surprised to find themselves confronted by the building itself.

“We’ve come some way,” Herb began with a chuckle, but Bob cut him short excitedly.

“Look!” he cried. “Didn’t I tell you that radio was the best ever? Just cast your eye on that aerial. You don’t see that trailing on the ground, do you?”

For a moment the other radio boys failed to grasp the significance of his words. Then they let out a great shout of triumph. For what Bob had said was true. Where other means of communication with the outside world failed, radio stood firm.