"I felt it," confessed Frank. "Had I believed in ghosts, I should have been badly frightened."

"Well, let's look this building over. We may find something in here."

So they began to explore the old boarding house. It was a large building, and they climbed the stairs to the second story, where none of the windows were boarded up. Up there were the rooms where the laborers had slept. They looked through them all, but found nothing of interest. At last they stopped by a window and looked out upon the water.

"By Jove!" exclaimed Merriwell. "Look down there!"

"What is it?"

"A boat."

"Where?"

"Beyond the land at the other side of the cove. It's laying close in to shore. See the mast?"

"Yes, I see it now. Why, it almost seems aground! Wonder what it's there for?"