[Illustration: Hatteras did not even turn once to look back, but marched straight on, carrying his country's flag attached to his staff.-P.249]

Hatteras did not even turn once to look back, but marched straight on, carrying his country's flag attached to his staff. His terrified friends watched every movement, and saw him gradually decrease to microscopic dimensions, while Duk looked no larger than a big rat.

Then came a moment of intense anxiety, for the wind beat down on them an immense sheet of flame, and they could see nothing but the red glare. A cry of agony escaped the Doctor; but an instant afterwards Hatteras reappeared, waving his flag.

For a whole hour this fearful spectacle went on-an hour of battle with unsteady loose rocks and quagmires of ashes, where the foolhardy climber sank up to his waist. Sometimes they saw him hoist himself up by leaning knees and loins against the rocks in narrow, intricate winding paths, and sometimes he would be hanging on by both hands to some sharp crag, swinging to and fro like a withered tuft.

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At last he reached the summit of the mountain, the mouth of the crater. Here the Doctor hoped the infatuated man would stop, at any rate, and would, perhaps, recover his senses, and expose himself to no more danger than the descent involved.

Once more he shouted-

"Hatteras! Hatteras!"

There was such a pathos of entreaty in his tone that Altamont felt moved to his inmost soul.

"I'll save him yet!" he exclaimed; and before Clawbonny could hinder him, he had cleared with a bound the torrent of fire, and was out of sight among the rocks.