The camp had been moved well back from the trail, where without danger of being heard Jennings could work upon the broken sled. Whether their quarry were caught in their trap this day or not, they must be prepared to travel on the morrow.

As he sat there with his eyes moving up and down the trail he thought of the adventures his calling as a secret service man of the air had brought him. He recalled those wild hours on the tossing sea when death appeared so near that it seemed almost to beckon. He thought of the girl, Gladys Ardmore, who had behaved so bravely on that night. He wondered what she might be doing at that moment.

Then his mind carried him back to the adventure which appeared to be just before him. The man he was seeking had repeatedly broken all the laws of the air. He was subject not only to heavy fines but also to long years of imprisonment. That he would fight and willingly commit murder to escape punishment Curlie did not doubt. Yet here was Curlie, ready and willing to attempt to stop him in his mad career.

“One does not do such a thing for himself,” he reasoned. “He does it for the good of others. Here in Alaska are thousands of lonely people who can be cheered by music, stories and speeches broadcasted over thousands of miles. Yet a few outlaws of the air can spoil all that. It is the duty of some of us to see that they do not do it. There are matters of even greater importance; a miner lost on the tundra, snow-blind and all but hopeless, can, if he has a small radiophone set, send out a call for aid. From a large station this message may be picked up. He may be located and his life saved. Even the great explorer, Munson, may need some such assistance.”

Had he known how prophetic this last thought was, and how much he was to have to do with the explorer who was at that moment more than two thousand miles away on a ship beset by the perpetual ice of the Arctic, he would have been startled.

As it was, his mind turned to the mystery that always surrounds true adventure. He recalled the words of an old friend:

“Adventure, true adventure, like fame, does not come to those who seek it. It comes unbeckoned and unannounced. Oh! yes, you can blunder about and get into all kind of scrapes which really do not mean anything to yourself nor to anyone else, but that is not adventure. You may even succeed in getting yourself killed without experiencing an adventure.

“You’ll know an adventure when you see it. When, with no willing of your own, but following the plain lead of duty, you feel yourself going into something as dark and mysterious as an unexplored cave; when your heart beats madly, your knees tremble and your tongue clings to the roof of your mouth, yet you go straight on because you know that duty leads you, then you may be sure that you are about to enter upon a genuine adventure.”

As Curlie recalled these words he wondered whether or not, before the day was done, he would find himself entering upon a true adventure. Would his quarry, the outlaw of the air, come down the trail?

The day wore on. Noon came. He ate a frozen lunch. The sun sank lower and lower. His vigil did not relax, but he began to lose faith in his plan.