"If that's the best they can do," he thought, "they're welcome."

But that was not the best.

It wasn't that the batteries were aimed better next time. They were aimed far worse in their eager haste. They did not even touch the Uncas.

But an instant later something happened that showed that the captain of the Spanish merchantman had one more string to his bow.

He not only knew the location of the batteries, but he knew the location of the sand bars. While his own vessel sped on in safety, on board the Uncas there suddenly came a grinding thud, and an instant later the tug stopped short, so short it almost sent Clif flying over the top of the gun he was working.

And at the same time a shout was heard from Lieutenant Raymond, one that made the sailors' hearts leap up into their throats: "We're aground! We're aground!"

And in front of a Spanish battery!


CHAPTER III.

AN OLD ENEMY.