"Go below quickly!" yelled Bob, for that was the object he had in mind in inventing the Jilla-Jilly wind for the occasion.

"I will! I'll go at once!" And, holding on to hand-lines which had been stretched about the deck for safety, the nervous passenger made his way to his cabin, while the ship tossed more than ever.

CHAPTER XVI

WRECK OF THE SHIP

Though the vessel was in great danger Bob could not help smiling at the success of his prank. When Mr. Tar-bill, with every evidence of terror, had left the deck, Bob crept cautiously forward to peer ahead into the wild waste of waves that threatened to overwhelm the Eagle.

"If it isn't a Jilla-Jilly wind, it's almost as bad," thought our hero. If he had known more about the ocean and its terrors he would have been more frightened than he was. If it was not exactly an instance of "where ignorance is bliss, 'tis folly to be wise," it was, in Bob's case, the next thing to it.

"Wow! That was a bad one!" exclaimed the boy, as an extraordinarily large wave made the ship tremble.

At the same instant a frightened shriek rang out through the darkness. It was one full of terror.

"It's got me! It's got me!" yelled the voice. "What in the world is that?" shouted Captain Spark above the din of the storm. "Is some one overboard?"

"Sounds like Mr. Tarbill," replied the mate, putting his lips close to the captain's ear, so as to be heard.