He let Perk take over the controls before a great while, while once again he studied his charts, well marked from previous searchings. So went the long hours, with numerous turnings as the humor urged; for they were now only killing time, and waiting for the dawn to come.

No sooner was it light than Jack again settled down at the stick, with the ship headed toward his intended goal. He had good reason to believe his information to be correct, and that before many hours they would be able to cash in on the prospect, kill the efficiency of the outlaw radio station to do further injury, and bring the operations of the great smuggler league to a wind-up, which was all the Government asked of him.

Nine o’clock in the morning found them on the coast, and approaching a certain wild district where no man was supposed to have his habitation—even the shanties of the Spring fishermen were conspicuous by their absence—the place was so lonely, so isolated, so storm-swept, that the bravest of coast dwellers did not have the nerve to carry on their daily avocation along the line of fishing, or wild-fowl shooting, amidst such desolate surroundings.

All of which had made it an ideal spot for an unregistered radio base; and Jack believed his hunch was a true one when he decided he would find the end of his trail where he was now heading.

A little distance back of the beach, beyond the scrub and dead grass, there had for many years been known to exist a strange looking object, almost falling in ruins now; but which at one time had been a well built tower, more or less fashioned after the type of a coast lighthouse, since it had winding stairs within, and a room at the top, from which a wonderful view of the sea could be obtained.

Jack knew the brief history of that queer tower—how it had been built long years back by a retired sea captain, whose heart was still faithful to his beloved salt-water; and who, desirous of dying within the sound of the breakers had spent almost his last dollar in having this peculiar tower erected, strong enough with its rocky walls to defy the elements that usually played such rough pranks along this particular stretch of shore.

Some people of a romantic turn of mind even said the old captain had lost his wife and daughter in a wreck close by that very part of the coast, which fact had been mainly instrumental in his carrying out his queer conceit. After all, he had really died there, being found lifeless by a party of shipwrecked men who chanced to reach land at that place, and anticipated being fed and warmed by some genial light keeper, only to discover but a dead man there. A nephew had seen to his burial, stripped the “observatory” of everything of value, and forsook all else. Now the tower was a near-ruin, and in danger of toppling when some unusually severe gale swept the water over the sand ridge, and against the “castle” wall.

When Perk glimpsed the object of their solicitude far away Jack brought his ship down on the beach, and taxied back to where he had reason to believe it would be safe from the highest tide.

Then they set out to stalk their intended prey, keeping far enough back so as to avoid being detected by any trained eyes from the room in the top of the dead sea captain’s lone tower.

By noon they had gained enough distance to be able to keep watch on the tower through means of Perk’s glasses. They soon discovered signs of life about the place, which fact gratified them greatly; surely no rational human being would ever take up his abode in that ramshackle affair unless he had some unusually important reason for so doing, such was its inaccessibility, and lonesome condition, there being not even duck shooting available, while the fishing must be equally non est.