Still there was that hundred yards to clear; and now, favoured by the currents that played round the north point, it was evident that at least one of the praus had cleared it and was coming down upon them straight for the bay. There was the loud rhythmical yelling of the men shouting together, and the slow beat of the sweeps as they rowed vigorously; while the two long oars of the cutter, only intended to help her out of harbour in a calm, hardly gave her headway.

The glare from the mountain increased so that every object was plainly seen; and Mark could not help gazing at the wondrous aspect of the mountain, the top of which emitted a light of dazzling brilliancy, while a thin streak of red seemed to be stealing in a zigzag fashion from one side.

Then there was a tremendous burst as if of thunder; a rushing, hissing noise, as if a shower of stones had been hurled into the sky; and then all was darkness for a few moments.

“Blown out!” said the major laconically as if he were speaking of a candle; but the words had hardly left his lips before with a frightful explosion the mountain blazed forth again, with the glare far more intense, and showing the prau they had dimly-seen before coming on fast.

“The eruption does not seem to scare them,” said the captain.

“Well, it does me,” said the major. “It’s a kind of warfare I don’t understand.” Then in a whisper which Mark heard: “Shall we get round the point, or must we fight for it?”

“Unless we catch the wind,” replied the captain, “they will be down upon us first; and then—”

“We must fight for it,” said the major coolly. “Well, fortunately we are well prepared. Look here, Strong, you keep on with your navigation as long as you like, while I have the fighting tools ready. The moment retreat is useless, say the word and we’ll show fight.”

Captain Strong gave his hand a grip, and then stood gazing straight before him perfectly unmoved.

The position was one that would have blanched the cheek of the bravest man. For there in front was the prau coming rapidly on, full of bloodthirsty pirates, who had ceased firing as they saw their prey within their grasp; while behind was the volcano, whose eruption was minute by minute growing more terrible, and around them the luridly lit-up waters of the old crater in which they were, boiling up, hissing, and emitting great puffs of steam, where, as the cutter rocked and plunged, it seemed to be only a matter of moments before she would be engulfed—sucked down, as it were, into the awful depths below!