gether in the shelter of the rock, seeking warmth.
Suddenly, from the sea, they heard the steady chug-chug of a motorboat that seemed to be progressing slowly along in close proximity to the shore. They looked out and they could see a headlight slowly moving through the darkness.
"It's a motorboat, but it's traveling very slowly," said Chet.
"Let's take a chance and hail them."
"It might be some of the gang."
"That's right. But we can go down closer to the shore and see. It may be Frank and Joe looking for us."
The two lads left the shelter of the rocks and began moving cautiously toward the beach. They realized that there was every chance that the mysterious craft might be one of the gangsters' boats and that they would be risking recapture by making their presence known. But, on the other hand, it might be the Hardy boys returning in an effort to pick them up.
They had gone no more than a few yards when a loud voice only a short distance away made them jump with surprise:
"Is that one of our boats, Pete?"
"No. I don't know it at all. There's something funny about this."
A rock clattered down the slope. Chet looked
