In this volume, Jack Curtiss and his gang were again encountered, but although their trickery prevailed for a time, in the end they were routed. A noteworthy feature of this book was the story of the career and end of Silver Tip, a giant grizzly bear of sinister reputation in that part of the country.

The Boy Scouts and the Army Airship, brought the lads into a new and vital field of endeavor. They met an army officer, who was conducting secret tests of an aeroplane, and were enabled to aid him in many ways. In all the thrilling situations with which this book abounds, the boys are found always living up to the scout motto of “Be prepared.”

How they checkmated the efforts of Stonington Hunt, an unscrupulous financier, to rob a poor boy of the fruits of his inventive genius—a work in which he was aided by his unworthy son, Freeman Hunt—must be read to be appreciated. In doing this work, however, they earned Hunt’s undying hatred, and, although they thought they were through with him when he slunk disgraced out of Hampton, they had not seen the last of him.

As the present story progresses, we shall learn how Stonington Hunt and his son tried to avenge themselves for their fancied wrongs at the hands of the Boy Scouts.

CHAPTER II.
TWO MYSTERIOUS MEN.

“Tell us all about it, Rob!”

The Eagles and the Hawks pressed close about Rob, as, after the two machines had driven off, the scouts stood surrounded by curious townsfolk on the wharf.

“Not much to tell,” rejoined Rob, with a laugh. “Major Dangerfield is, it appears, an old friend of my father. He comes from Essex County, or rather, he has a summer place up there. On an automobile trip from Albany, to take his daughter to visit some friends down on Peconic Bay, he decided to stop over at Hampton and see the governor.

“He entered the bank to give dad a surprise, leaving his daughter outside for a few minutes, in the machine. She became interested in its mechanism and pulled a lever, and—the machine darted off. And—and that’s all,” he concluded modestly.

“Except that the leader of the Eagles covered himself with laurels,” struck in Bob—or Tubby—Hopkins, another member of the Eagles.