“That isn’t a vessel,” said Rose, with a worried look on her face. “That’s the bell of the shoal buoy. We are quite a way out to sea!”

“And lost in the fog,” added Nellie.

CHAPTER XVI.
ON THE ROCKS

With a quick motion Jerry shut off the power, and the Ripper drifted through the mist, slowly losing headway. The sound of the bell became more distinct, and in a little while something dark loomed up before the anxious eyes of the boys and girls.

“Lookout! She’s going to hit!” cried Ned.

“That’s the buoy,” declared Nellie.

“What’s its location?” asked Jerry. “Can’t we get our bearings from it?”

“Well, it’s about eight miles off shore, I’ve heard the fishermen say,” replied Nellie, “and it’s about four miles down the coast from San Felicity.”

“It doesn’t seem as if we came as far as that,” said Bob.

“This is a very fast boat,” commented Rose.