CHAPTER XVI
AN ISLE OF MYSTERIES

Grace Palmer arrived late. It was growing dark when her car pulled up before the hangar. She came alone. Curlie was surprised. He had expected her to bring the chauffeur.

“You’ll have to pardon me.” She smiled as she threw open the door. “Usually I arrive at the tick of the clock. But I had a blowout. The old bus described a parabola and nearly put me on the curb. But hop in. We’ll get there all right now.”

Curlie climbed in and they were away. He was beginning to have a comfortable feeling about this new friend. “Here,” he told himself, “is unexpected aid.” And aid was what he needed. In spite of the fact that his youthful employer had treated him in a magnanimous manner, he felt morally responsible for the return of that mysterious, and supposedly priceless, package.

“If that Secret Service man knew what he was talking about,” he said to Grace Palmer, “those fellows were not only beating the Government out of thousands of dollars in customs duties, but were planning to use the whole proceeds for the purpose of striking what blows they might at the land that feeds, clothes and protects them. And if they get away with it, I’ll be to blame.”

“They won’t get away with it,” Grace Palmer said stoutly. “We will see to that!”

* * * * * * * *

In the meantime, Johnny Thompson had not been idle. He meant to enter the tunnel where Curlie had, quite by accident, lost himself and nearly lost his life in the bargain.

It was, he found soon enough, quite an unusual thing for the entrance to be left unguarded. When he tried to go down, a watchman stopped him.

“Have to get a permit from Mr. Rusby,” he told the boy gruffly. “He’s the manager.”