17

XVI. THE GHOST AGAIN 126

XVII. ATTACKED BY SAVAGES 134

XVIII. ON LAND 143

XIX. REGAINING THE SHIP 152

XX. ON A VOLCANIC ISLAND 160

XXI. CAUGHT IN A WHIRLPOOL 169

XXII. UNDER FIRE 177

XXIII. CAUGHT IN AN ICE FLOE 185

XXIV. THE SHIP GRAVEYARD 193

XXV. CAUGHT BY SEA SUCKERS 201

XXVI. LAND UNDER ICE 211

XXVII. ATTACKED BY AN OCTUPUS 220

XXVIII. OUT OF THE ICE 228

XXIX. THE BOILING WATER 235

XXX. THE SOUTH POLE--CONCLUSION 240

UNDER THE OCEAN TO THE SOUTH POLE

CHAPTER I

WILL THE SHIP WORK?

"Hand me that wrench, Mark," called Professor Amos Henderson to a boy
who stood near some complicated machinery over which the old man was
working. The lad passed the tool over.

"Do you think the ship will work, Professor?" he asked.

"I hope so, Mark, I hope so," muttered the scientist as he tightened
some bolts on what was perhaps the strangest combination of apparatus
that had ever been put together. "There is no reason why she should not,
and yet--"

The old man paused. Perhaps he feared that, after all, the submarine
boat on which he had labored continuously for more than a year would be
a failure.

"Is there anything more I can do now?" asked Mark.

"Not right away," replied the professor, without looking up from the
work he was doing. "But I wish you and Jack would be around in about an
hour. I am going to start the engine then, and I'll need you. If you see
Washington outside send him to me."

Mark left the big room where the submarine boat had been in process of
construction so long. Outside he met a boy about his own age, who was
cleaning a rifle.

"How's it going, Mark?" asked this second youth, who was rather fat,
and, if one could judge by his face, of a jolly disposition.

"The professor is going to try the engine in about an hour," replied
Mark. "We must be on hand."

"I'll be there all right. But if there isn't anything else to do, let's
shoot at a target. I'll bet I can beat you."

"Bet you can't. Wait 'till I get my gun."

"Now don't yo' boys go to disportin' yo'seves in