Then, like a galvanic shock, another thought flashed through his mind.

The third man,—the man of the island,—was also, almost without question, the fellow whom Harry had seen slip along the deck and vanish down the forescuttle, when the Border Boys appeared to board the River Swallow some time before they were expected.

The elation of this revelation was still stirring in the lad’s mind, when the three men, who seemed oblivious of the crowd about them, suddenly shoved their way through the press, and, walking side by side, set off up the road that led toward town.

This was insubordination of the rankest sort on Malvin’s part. He had been told by Ralph to stay by the boat. Now Harry’s mind alternated between indignation and curiosity as he saw the trio coming toward him. Near where he stood was a big pile of empty boxes and barrels. It was the work of only an instant for him to slip adroitly behind these and effectually conceal himself as the men advanced toward him.

They were talking earnestly and eagerly. As they came abreast of Harry’s place of concealment, he heard Malvin’s voice. The fellow evidently did not fear detection or eavesdroppers, for he was talking in a bold, loud voice.

“A lucky thing I hid in that shrubbery and overheard every word the young whelps were saying,” he was exclaiming. “Otherwise we might have walked right into a trap. What do you advise doing, Hawke?”

“So the man of the island is named Hawke, is he?” thought Harry, as he listened with every instinct strained. “Well, that’s one discovery, Mr. Malvin. Another one is that I was not mistaken when I thought I heard something in the shrubbery this afternoon.”

“Give me time to breathe a bit after my confinement in that gasoline compartment,” rejoined Hawke in a surly manner. “I thought I’d suffocate in there. That inquisitive young brat stayed down in the forepeak too long to suit me, I can tell you.”

“Well, it was a good thing I gave you warning by shouting, ‘Look out below,’” rejoined Malvin; “otherwise all our plans might have been upset.”

Hansen’s voice halted the two worthies just as Harry feared they were about to get out of earshot.