“Now watch that skiff vanish.”

And so saying Frank rushed inside and got several bombs.

Going out on deck, he leaned over the side, and taking careful aim, he let one of the grenades fall.

It went down as straight as an arrow.

All hands watched it with deep interest.

Bang!

It had struck squarely in the boat.

In one minute more the tiny craft was gone.

Only one of the occupants survived, and that was Diavolo.

They saw the burly rascal swimming feebly for the shore.