In another second we saw its white breast rising; for sharks always turn over on their sides when about to seize their prey, their mouths being not at the point of their heads like those of other fish, but, as it were, under their chins.

In another moment his snout rose above the water,--his wide jaws, armed with a terrific double row of teeth, appeared.

The dead fish was engulfed, and the shark sank out of sight.

But Jack was mistaken in supposing that it would be satisfied.

In a very few minutes it returned to us, and its quick motions led us to fear that it would attack us at once.
"Stop paddling," cried Jack suddenly.