He dashed down into the hold.

When he came up he carried a couple of jack-screws of very fine steel and great lifting power.

“I done fix dat big hunk ob ice now!” he muttered.

He quickly donned his diving suit.

Then he took the jack-screws and went into the vestibule.

It was but a moment’s work to let on the water, and after the chamber had filled he emerged upon the deck.

Pomp descended to the bed of the ocean and approached the block of ice.

But, as he did so, what seemed like a huge mound of earth before him began to move.

Up it went, and the water began to move violently. Then Pomp saw the wide jaws of a monster fish.

In an instant a thrill of horror came over him.